Science Info

Lg tricks

2009-12-13T09:26:00.000-08:00

To check LG mobile or cellphones IMEI (International Mobile Equipment Identity)

On the main screen type *#06#

Information you get from the IMEI (International Mobile Equipment Identity)
XXXXXX XX XXXXXX X
TAC FAC SNR SP

TAC = Type approval code of your LG Mobile
FAC = Final assembly code of your cellphone
SNR = Serial number of your LG Phone
SP = Spare

Other secret tricks for LG mobile or cellphone

LG all models test mode:
Type 2945#*# on the main screen.
2945*#01*# Secret menu for LG
IMEI and SW (LG 510): *#07#
Software version (LG B1200): *8375#
Recount cheksum (LG B1200): *6861#
Factory test (B1200): #PWR 668
Simlock menu (LG B1200): 1945#*5101#
Simlock menu (LG 510W, 5200): 2945#*5101#
Simlock menu (LG 7020, 7010): 2945#*70001#
Simlock menu (LG 500, 600): 2947#*

LG-U81XX SPECIAL CODES
Code to read phone version :
- Phone without SIM
- Enter 277634#*# or 47328545454#
- Select 'SW Ver.info'
Code to reset phone :
- Phone without SIM

- Enter 277634#*# or 47328545454#
- Select 'Factory Reset'

Code to enter UNLOCK MENU :
- Phone wit SIM inside
- Enter 2945#*88110#
Test Menu 8330 : 637664#*#
Test Menu 8180 V10a: 49857465454#
Test Menu 8180 V11a: 492662464663#
Test Menu 8130-8138: 47328545454#
Test Menu 8110-8120: 277634#*

Change closed caller group (settings >security settings>user groups) to 00000 and your phone will sound the message tone when you are near a radar speed trap.
Setting it to 500 will cause your phone 2 set off security alarms at shop exits.
Try this secret trick if you can handle the unexpected.
Note: This secret trick wont work with all phones Models.

THE DETECTIVE TRICK (Mobile Spying)

Now you can spy on anyone using your cellphone. Just do the following.

Activate the "Automatic Answer" in the headset profile of your cellphone and set the ringing volume to "Mute"
Short-circuit the left middle and right pins on the bottom of the mobile phone with all connections touching each other this will activate profile "Headset".
If you cant do this just keep your earphone connected to mobile.
Now place it under a table in a room and call it. Now you can use your phone for checking out what people are talking about in a room. Just call on your phone.
The phone receives the call without ringing and you can listen to what people are saying.

View all Tip & Tricks about LG Nokia Samsung Motorola Sony Ericsson BenQ-Siemens Bluejacking GSM Secrets

Make your cell phone spy free of cost

2009-12-13T08:59:00.000-08:00

You can use ur cell phone as dectector (amazing spy trick for all cell phone)

Activate the "Automatic Answer" in the headset profile of your cell phone and set the ringing volume to "Mute"

Short-circuit the left middle and right pins on the bottom of the mobile phone with all connections touching each other this will activate profile "Headset".
If you cant do this just keep your earphone connected to mobile.

Now place it under a table in a room and call it. Now you can use your phone for checking out what people are talking about in a room. Just call on your phone.

The phone receives the call without ringing and you can listen to what people are saying.

Refrance:http://en.wikipedia.org

Nokia N97

2009-10-22T01:00:00.000-07:00

The Nokia N97 is a touch screen combined phone and "mobile computer" in the Nseries of smartphones by Nokia, with a fold-out QWERTY keyboard.
Announced on 2 December 2008, the N97 is Nokia's second touchscreen phone (after the Nokia 5800 XpressMusic) that is based on the Nokia S60 platform.
The Nokia N97 was released in US flagship stores on 9 June 2009and soon after was released worldwide. In September 2009 it was reported that two million N97 handsets had been sold in three months following its release.
Many users have reported the camera lens cover of the N97 to cause scratches on the lens. Nokia has acknowledged that for some devices the cover is mounted too closely to the lens such that dust and debris causes straight lined scratches.
N97's come shipped with Quick Office, Adobe reader, Ovi Maps, Boingo, JoikuSpot Premium & the Ovi store. All but the Ovi store, Quick Office and Ovi Maps are trial versions.
Operating times
Informal tests have shown that the battery can last nearly two days despite regular use of the phone's various features.. Nokia quote the following claimed operating times
Talk time: Up to 6.0 hours (3G), 9.5 hours (GSM)
Standby time: Up to 17 days (3G), 18 days (GSM)
Video playback: Up to 4.5 hours (offline mode)
Video recording: Up to 3.6 hours (offline mode)
Music playback: Up to 40 hours (offline mode)

Price: NokiaN97Rs. 49,000

Refrance:http://en.wikipedia.org

Nokia E90

2009-10-22T00:46:00.000-07:00

Nokia E90 Communicator is a 3G smartphone made by Nokia and the latest model of the Communicator series. It was announced in February 2007 at the 3GSM show in Barcelona.
The first Nokia E90 unit was sold in an auction in Jakarta, Indonesia on May 17, 2007 for Rp. 45,000,000 (5,000 US$). Indonesia being one of the largest market share for Nokia's communicator series is cited as a reason for the unit's first launch location.
E90 starts the fifth generation of Nokia's communicators, and also introduces a new platform to Nokia's communicator line, Series 60 v3. Previous communicators have been based on either GeOS or Series 80. E90 is also the first Nokia communicator to have UMTS/HSDPA connectivity and integrated GPS. It features OSGi and eRCP, Eclipse RCP for embedded systems.
Early user-feedback and reviews highlighted a defect in the microphone of Nokia E90. Nokia initially denied the existence of the defect, but it was later acknowledged by Nokia Europe, and addressed in the Q3 earnings report released on October 18, 2007, stating that the issue has now been fully resolved. Early phones sold in Belgium offered a choice of English, Dutch or Romanian but not French language.
Firmware version 7.40.1.2, released in late October 2007, added support for A-GPS, intended to enhance GPS performance in poor signal conditions, such as in city streets overshadowed by buildings. This version also upgraded the Maps application. As of June 2009[update] the most recent firmware version is 400.34.93.
With new firmware, some users experience Bluetooth, wlan and radio problems. Some users report that, after installing new firmware, Bluetooth cannot be turned on, wlan can not find access points and radio reboots device whenever turned on. Nokia does not accept this problem. The devices under warranty coverage are replaced by Nokia, but others have no solution and can not be repaired. For reference please google "E90 Bluetooth problem"

Refrance:http://en.wikipedia.org

Iphone

2009-10-22T00:16:00.000-07:00

The iPhone is an Internet and multimedia enabled smartphone designed and marketed by Apple Inc. Because its minimal hardware interface lacks a physical keyboard, the multi-touch screen renders a virtual keyboard when necessary. The iPhone functions as a camera phone (also including text messaging and visual voicemail), a portable media player (equivalent to a video iPod), and an Internet client (with email, web browsing, and Wi-Fi connectivity). The first-generation phone hardware was quad-band GSM with EDGE; the second generation added UMTS with 3.6 Mbps HSDPA; the third generation adds support for 7.2 Mbps HSDPA downloading but remains limited to 384 Kbps uploading as Apple had not implemented the HSPA protocol.
Apple announced the iPhone on January 9, 2007,after months of rumors and speculation. The original iPhone was introduced in the United States on June 29, 2007 before being marketed worldwide. Time magazine named it the Invention of the Year in 2007. Released July 11, 2008, the iPhone 3G supports faster 3G data speeds and assisted GPS. On March 17, 2009, Apple announced version 3.0 of the iPhone OS operating system for the iPhone (and iPod Touch), released on June 17, 2009. The iPhone 3GS was announced on June 8, 2009, and has improved performance, a camera with more megapixels and video capability, and voice control. It was released in the U.S., Canada and 6 European countries on June 19, 2009, in Australia and Japan on June 26, and saw international release in July and August, 2009.

Refrance:

http://en.wikipedia.org/

Communication Technology

2009-10-15T00:47:00.000-07:00

Communication Technology

Communication technology provides access to information and markets. It connects people to various educational opportunities. Thus, communicat

ion technologies help in bringing about transformation in economies. The computer-mediated communication technology includes conferencing technologies and messaging systems. This technology also facilitates group work.

Communication technology helps to:

Develop thinking skills
Decreases the need for memorization of the facts
Evaluates current information
Develops accessing skills

Communication technologies also help in traini

ng the students. It promotes better understanding and coordination. The popular communication technologies are:

Telephone
E-mail
Fax
Internet
Video conferencing

Video-conferencing enables face to face interaction between the employees and their boss. It enables effective communication of ideas. Video-conferencing motivates employees. Students and teachers may also communicate through face to face interaction. Video-conferencing increases intimacy and promotes interaction.

Computer Technology

Computer technology promotes independence and self-assessment. It stimulates the interest of the students. The various programs in the system helps students in self-assessment. Word processor programs help students in organizing letters. Interactive computers also help students with their pronunciation. Computer technology assists people in learning languages. Teachers may re-evaluate their teaching methods with the help of computers. Teachers may also effectively use computer technology to enhance their teaching skills. Computer technology assists people with learning disabilities. The disabled people may use graphics software and word processor to express themselves. Computers help students to improve their spellings. Computer technologies also benefit people with speech disability. Students may film clips of their speech and replay them. Computer technology assists them in practicing their speech skills.

Management Technology

Management technology protects the sensitive corporate information. Management technologies offer solutions to many IT problems. It also reduces IT costs. An effective management technology should provide the following benefits:

Trouble shooting and recovery: It increases the efficiency of IT staff.
Non volatile storage: It survives system rebuilds.
Proactive alerting: It decreases downtime.
Tamper resistant agents: It prevents users from disturbing the software.

An effective management technology helps technicians in obtaining accurate inventory information. This technology improves asset management and reduces desk-side visits.

Internet

2009-10-14T22:27:00.000-07:00

Jump to: navigation, search

This article is about the public worldwide computer network system. For other uses, see Internet (disambiguation).

Visualization of the various routes through a portion of the Internet

The Internet is a global system of interconnected computer networks that use the standardized Internet Protocol Suite (TCP/IP) to serve billions of users worldwide. It is a network of networks that consists of millions of private and public, academic, business, and government networks of local to global scope that are linked by copper wires, fiber-optic cables, wireless connections, and other technologies. The Internet carries a vast array of information resources and services, most notably the inter-linked hypertext documents of the World Wide Web (WWW) and the infrastructure to support electronic mail. In addition it supports popular services such as online chat, file transfer and file sharing, gaming, commerce, social networking, publishing, video on demand, and teleconferencing and telecommunications. Voice over Internet Protocol (VoIP) applications allow person-to-person communication via voice and video.

The origins of the Internet reach back to the 1960s when the United States funded research projects of its military agencies to build robust, fault-tolerant and distributed computer networks. This research and a period of civilian funding of a new U.S. backbone by the National Science Foundation spawned worldwide participation in the development of new networking technologies and led to the commercialization of an international network in the mid 1990s, and resulted in the following popularization of countless applications in virtually every aspect of modern human life. As of 2009, an estimated quarter of Earth's population uses the services of the Internet.

Terminology

See also: Internet capitalization conventions

The terms Internet and World Wide Web are often used in everyday speech without much distinction. However, the Internet and the World Wide Web are not one and the same. The Internet is a global data communications system. It is a hardware and software infrastructure that provides connectivity between computers. In contrast, the Web is one of the services communicated via the Internet. It is a collection of interconnected documents and other resources, linked by hyperlinks and URLs.^[1] The term the Internet, when referring to the Internet, has traditionally been treated as a proper noun and written with an initial capital letter. There is a trend to regard it as a generic term or common noun and thus write it as "the internet", without the capital.

History

Main article: History of the Internet

The USSR's launch of Sputnik spurred the United States to create the Advanced Research Projects Agency, known as ARPA, in February 1958 to regain a technological lead.^[2][3] ARPA created the Information Processing Technology Office (IPTO) to further the research of the Semi Automatic Ground Environment (SAGE) program, which had networked country-wide radar systems together for the first time. J. C. R. Licklider was selected to head the IPTO. Licklider moved from the Psycho-Acoustic Laboratory at Harvard University to MIT in 1950, after becoming interested in information technology. At MIT, he served on a committee that established Lincoln Laboratory and worked on the SAGE project. In 1957 he became a Vice President at BBN, where he bought the first production PDP-1 computer and conducted the first public demonstration of time-sharing.

Professor Leonard Kleinrock with one of the first ARPANET Interface Message Processors at UCLA

At the IPTO, Licklider got Lawrence Roberts to start a project to make a network, and Roberts based the technology on the work of Paul Baran,^[4] who had written an exhaustive study for the United States Air Force that recommended packet switching (opposed to circuit switching) to achieve better network robustness and disaster survivability. UCLA professor Leonard Kleinrock had provided the theoretical foundations for packet networks in 1962, and later, in the 1970s, for hierarchical routing, concepts which have been the underpinning of the development towards today's Internet.

After much work, the first two nodes of what would become the ARPANET were interconnected between UCLA's School of Engineering and Applied Science and SRI International (SRI) in Menlo Park, California, on October 29, 1969. The ARPANET was one of the "eve" networks of today's Internet. Following on from the demonstration that packet switching worked on the ARPANET, the British Post Office, Telenet, DATAPAC and TRANSPAC collaborated to create the first international packet-switched network service. In the UK, this was referred to as the International Packet Switched Service (IPSS), in 1978. The collection of X.25-based networks grew from Europe and the US to cover Canada, Hong Kong and Australia by 1981. The X.25 packet switching standard was developed in the CCITT (now called ITU-T) around 1976.

A plaque commemorating the birth of the Internet at Stanford University

X.25 was independent of the TCP/IP protocols that arose from the experimental work of DARPA on the ARPANET, Packet Radio Net and Packet Satellite Net during the same time period. Vinton Cerf and Robert Kahn developed the first description of the TCP protocols during 1973 and published a paper on the subject in May 1974. Use of the term "Internet" to describe a single global TCP/IP network originated in December 1974 with the publication of RFC 675, the first full specification of TCP that was written by Vinton Cerf, Yogen Dalal and Carl Sunshine, then at Stanford University. During the next nine years, work proceeded to refine the protocols and to implement them on a wide range of operating systems. The first TCP/IP-based wide-area network was operational by January 1, 1983 when all hosts on the ARPANET were switched over from the older NCP protocols. In 1985, the United States' National Science Foundation (NSF) commissioned the construction of the NSFNET, a university 56 kilobit/second network backbone using computers called "fuzzballs" by their inventor, David L. Mills. The following year, NSF sponsored the conversion to a higher-speed 1.5 megabit/second network. A key decision to use the DARPA TCP/IP protocols was made by Dennis Jennings, then in charge of the Supercomputer program at NSF.

The opening of the network to commercial interests began in 1988. The US Federal Networking Council approved the interconnection of the NSFNET to the commercial MCI Mail system in that year and the link was made in the summer of 1989. Other commercial electronic e-mail services were soon connected, including OnTyme, Telemail and Compuserve. In that same year, three commercial Internet service providers (ISPs) were created: UUNET, PSINet and CERFNET. Important, separate networks that offered gateways into, then later merged with, the Internet include Usenet and BITNET. Various other commercial and educational networks, such as Telenet, Tymnet, Compuserve and JANET were interconnected with the growing Internet. Telenet (later called Sprintnet) was a large privately funded national computer network with free dial-up access in cities throughout the U.S. that had been in operation since the 1970s. This network was eventually interconnected with the others in the 1980s as the TCP/IP protocol became increasingly popular. The ability of TCP/IP to work over virtually any pre-existing communication networks allowed for a great ease of growth, although the rapid growth of the Internet was due primarily to the availability of an array of standardized commercial routers from many companies, the availability of commercial Ethernet equipment for local-area networking, and the widespread implementation and rigorous standardization of TCP/IP on UNIX and virtually every other common operating system.

This NeXT Computer was used by Berners-Lee at CERN and became the world's first Web server.

Although the basic applications and guidelines that make the Internet possible had existed for almost two decades, the network did not gain a public face until the 1990s. On 6 August 1991, CERN, a pan European organisation for particle research, publicized the new World Wide Web project. The Web was invented by English scientist Tim Berners-Lee in 1989. An early popular web browser was ViolaWWW, patterned after HyperCard and built using the X Window System. It was eventually replaced in popularity by the Mosaic web browser. In 1993, the National Center for Supercomputing Applications at the University of Illinois released version 1.0 of Mosaic, and by late 1994 there was growing public interest in the previously academic, technical Internet. By 1996 usage of the word Internet had become commonplace, and consequently, so had its use as a synecdoche in reference to the World Wide Web.

Meanwhile, over the course of the decade, the Internet successfully accommodated the majority of previously existing public computer networks (although some networks, such as FidoNet, have remained separate). During the 1990s, it was estimated that the Internet grew by 100 percent per year, with a brief period of explosive growth in 1996 and 1997.^[5] This growth is often attributed to the lack of central administration, which allows organic growth of the network, as well as the non-proprietary open nature of the Internet protocols, which encourages vendor interoperability and prevents any one company from exerting too much control over the network. ^[6] Using various statistics, Advanced Micro Devices estimated the population of Internet users to be 1.5 billion as of January 2009.^[7]

Technology

Protocols

Main article: Internet Protocol Suite

The complex communications infrastructure of the Internet consists of its hardware components and a system of software layers that control various aspects of the architecture. While the hardware can often be used to support other software systems, it is the design and the rigorous standardization process of the software architecture that characterizes the Internet and provides the foundation for its scalability and success. The responsibility for the architectural design of the Internet software systems has been delegated to the Internet Engineering Task Force (IETF).^[8] The IETF conducts standard-setting work groups, open to any individual, about the various aspects of Internet architecture. Resulting discussions and final standards are published in a series of publications, called Request for Comments (RFCs), freely available on the IETF web site. The principal methods of networking that enable the Internet are contained in specially designated RFCs that constitute the Internet Standards.

These standards describe a framework known as the Internet Protocol Suite. This is a model architecture that divides methods into a layered system of protocols (RFC 1122, RFC 1123). The layers correspond to the environment or scope in which their services operate. At the top is the Application Layer, the space for the application-specific networking methods used in software applications, e.g., a web browser program. Below this top layer, the Transport Layer connects applications on different hosts via the network (e.g., client-server model) with appropriate data exchange methods. Underlying these layers are the core networking technologies, consisting of two layers. The Internet Layer enables computers to identify and locate each other via Internet Protocol (IP) addresses, and allows them to connect to one-another via intermediate (transit) networks. Lastly, at the bottom of the architecture, is a software layer, the Link Layer, that provides connectivity between hosts on the same local network link, such as a local area network (LAN) or a dial-up connection. The model, also known as TCP/IP, is designed to be independent of the underlying hardware which the model therefore does not concern itself with in any detail. Other models have been developed, such as the Open Systems Interconnection (OSI) model, but they are not compatible in the details of description, nor implementation, but many similarities exist and the TCP/IP protocols are usually included in the discussion of OSI networking.

The most prominent component of the Internet model is the Internet Protocol (IP) which provides addressing systems (IP addresses) for computers on the Internet. IP enables internetworking and essentially establishes the Internet itself. IP Version 4 (IPv4) is the initial version used on the first generation of the today's Internet and is still in dominant use. It was designed to address up to ~4.3 billion (10⁹) Internet hosts. However, the explosive growth of the Internet has led to IPv4 address exhaustion which is estimated to enter its final stage in approximately 2011.^[9] A new protocol version, IPv6, was developed in the mid 1990s which provides vastly larger addressing capabilities and more efficient routing of Internet traffic. IPv6 is currently in commercial deployment phase around the world and Internet address registries (RIRs) have begun to urge all resource managers to plan rapid adoption and conversion.^[10]

IPv6 is not interoperable with IPv4. It essentially establishes a "parallel" version of the Internet not directly accessible with IPv4 software. This means software upgrades or translator facilities are necessary for every networking device that needs to communicate on the IPv6 Internet. Most modern computer operating systems are already converted to operate with both versions of the Internet Protocol. Network infrastructures, however, are still lagging in this development. Aside from the complex physical connections that make up its infrastructure, the Internet is facilitated by bi- or multi-lateral commercial contracts (e.g., peering agreements), and by technical specifications or protocols that describe how to exchange data over the network. Indeed, the Internet is defined by its interconnections and routing policies.

Structure

The Internet structure and its usage characteristics have been studied extensively. It has been determined that both the Internet IP routing structure and hypertext links of the World Wide Web are examples of scale-free networks. Similar to the way the commercial Internet providers connect via Internet exchange points, research networks tend to interconnect into large subnetworks such as GEANT, GLORIAD, Internet2 (successor of the Abilene Network), and the UK's national research and education network JANET. These in turn are built around smaller networks (see also the list of academic computer network organizations).

Many computer scientists describe the Internet as a "prime example of a large-scale, highly engineered, yet highly complex system".^[11] The Internet is extremely heterogeneous; for instance, data transfer rates and physical characteristics of connections vary widely. The Internet exhibits "emergent phenomena" that depend on its large-scale organization. For example, data transfer rates exhibit temporal self-similarity. The principles of the routing and addressing methods for traffic in the Internet reach back to their origins the 1960s when the eventual scale and popularity of the network could not be anticipated. Thus, the possibility of developing alternative structures is investigated.^[12]

Governance

Main article: Internet governance

ICANN headquarters in Marina Del Rey, California, United States

The Internet is a globally distributed network comprising many voluntarily interconnected autonomous networks. It operates without a central governing body. However, to maintain interoperability, all technical and policy aspects of the underlying core infrastructure and the principal name spaces are administered by the Internet Corporation for Assigned Names and Numbers (ICANN), headquartered in Marina del Rey, California. ICANN is the authority that coordinates the assignment of unique identifiers for use on the Internet, including domain names, Internet Protocol (IP) addresses, application port numbers in the transport protocols, and many other parameters. Globally unified name spaces, in which names and numbers are uniquely assigned, are essential for the global reach of the Internet. ICANN is governed by an international board of directors drawn from across the Internet technical, business, academic, and other non-commercial communities. The US government continues to have the primary role in approving changes to the DNS root zone that lies at the heart of the domain name system. ICANN's role in coordinating the assignment of unique identifiers distinguishes it as perhaps the only central coordinating body on the global Internet. On November 16, 2005, the World Summit on the Information Society, held in Tunis, established the Internet Governance Forum (IGF) to discuss Internet-related issues.

Modern uses

The Internet is allowing greater flexibility in working hours and location, especially with the spread of unmetered high-speed connections and web applications.

The Internet can now be accessed almost anywhere by numerous means, especially through mobile Internet devices. Mobile phones, datacards, handheld game consoles and cellular routers allow users to connect to the Internet from anywhere there is a wireless network supporting that device's technology. Within the limitations imposed by small screens and other limited facilities of such pocket-sized devices, services of the Internet, including email and the web, may be available. Service providers may restrict the services offered and wireless data transmission charges may be significantly higher than other access methods.

The Internet has also become a large market for companies; some of the biggest companies today have grown by taking advantage of the efficient nature of low-cost advertising and commerce through the Internet, also known as e-commerce. It is the fastest way to spread information to a vast number of people simultaneously. The Internet has also subsequently revolutionized shopping—for example; a person can order a CD online and receive it in the mail within a couple of days, or download it directly in some cases. The Internet has also greatly facilitated personalized marketing which allows a company to market a product to a specific person or a specific group of people more so than any other advertising medium. Examples of personalized marketing include online communities such as MySpace, Friendster, Orkut, Facebook and others which thousands of Internet users join to advertise themselves and make friends online. Many of these users are young teens and adolescents ranging from 13 to 25 years old. In turn, when they advertise themselves they advertise interests and hobbies, which online marketing companies can use as information as to what those users will purchase online, and advertise their own companies' products to those users.

The low cost and nearly instantaneous sharing of ideas, knowledge, and skills has made collaborative work dramatically easier, with the help of collaborative software. Not only can a group cheaply communicate and share ideas, but the wide reach of the Internet allows such groups to easily form in the first place. An example of this is the free software movement, which has produced, among other programs, Linux, Mozilla Firefox, and OpenOffice.org. Internet "chat", whether in the form of IRC chat rooms or channels, or via instant messaging systems, allow colleagues to stay in touch in a very convenient way when working at their computers during the day. Messages can be exchanged even more quickly and conveniently than via e-mail. Extensions to these systems may allow files to be exchanged, "whiteboard" drawings to be shared or voice and video contact between team members.

Version control systems allow collaborating teams to work on shared sets of documents without either accidentally overwriting each other's work or having members wait until they get "sent" documents to be able to make their contributions. Business and project teams can share calendars as well as documents and other information. Such collaboration occurs in a wide variety of areas including scientific research, software development, conference planning, political activism and creative writing. Social and political collaboration is also becoming more widespread as both Internet access and computer literacy grow. From the flash mob 'events' of the early 2000s to the use of social networking in the 2009 Iranian election protests, the Internet allows people to work together more effectively and in many more ways than was possible without it.

The Internet allows computer users to remotely access other computers and information stores easily, wherever they may be across the world. They may do this with or without the use of security, authentication and encryption technologies, depending on the requirements. This is encouraging new ways of working from home, collaboration and information sharing in many industries. An accountant sitting at home can audit the books of a company based in another country, on a server situated in a third country that is remotely maintained by IT specialists in a fourth. These accounts could have been created by home-working bookkeepers, in other remote locations, based on information e-mailed to them from offices all over the world. Some of these things were possible before the widespread use of the Internet, but the cost of private leased lines would have made many of them infeasible in practice. An office worker away from their desk, perhaps on the other side of the world on a business trip or a holiday, can open a remote desktop session into his normal office PC using a secure Virtual Private Network (VPN) connection via the Internet. This gives the worker complete access to all of his or her normal files and data, including e-mail and other applications, while away from the office. This concept is also referred to by some network security people as the Virtual Private Nightmare, because it extends the secure perimeter of a corporate network into its employees' homes.

Services

Information

Many people use the terms Internet and World Wide Web (or just the Web) interchangeably, but, as discussed earlier, the two terms are not synonymous. The World Wide Web is a global set of documents, images and other resources, referenced and interconnected by Uniform Resource Locators (URLs) and hyperlinks. These URLs allow users to address the web servers and other devices that store these resources and access them as required using the Hypertext Transfer Protocol (HTTP). HTTP is only one of the communication protocols used on the Internet. Web services may also use HTTP to allow software systems to communicate in order to share and exchange business logic and data.

Software products that can access the resources of the Web are often called user agents. In normal use, web browsers, such as Internet Explorer, Firefox, Opera, Apple Safari, and Google Chrome, let users navigate from one web page to another via hyperlinks. Documents on the web may contain any combination of computer data, including graphics, sounds, text, video, multimedia and interactive content including games, office applications and scientific demonstrations. Through keyword-driven Internet research using search engines like Yahoo! and Google, users worldwide have easy, instant access to a vast and diverse amount of online information. Compared to printed encyclopedias and traditional libraries, the World Wide Web has enabled a sudden and extreme decentralization of information and data.

Using the Web, it is also easier than ever before for individuals and organizations to publish ideas and information to a potentially large audience. Publishing a web page, a blog, or building a website involves little initial cost and many cost-free services are available. Publishing and maintaining large, professional web sites with attractive, diverse and up-to-date information is still a difficult and expensive proposition, however. Many individuals and some companies and groups use web logs or blogs, which are largely used as easily updatable online diaries. Some commercial organizations encourage staff to communicate advice in their areas of specialization in the hope that visitors will be impressed by the expert knowledge and free information, and be attracted to the corporation as a result. One example of this practice is Microsoft, whose product developers publish their personal blogs in order to pique the public's interest in their work. Collections of personal web pages published by large service providers remain popular, and have become increasingly sophisticated. Whereas operations such as Angelfire and GeoCities have existed since the early days of the Web, newer offerings from, for example, Facebook and MySpace currently have large followings. These operations often brand themselves as social network services rather than simply as web page hosts.

Advertising on popular web pages can be lucrative, and e-commerce or the sale of products and services directly via the Web continues to grow. In the early days, web pages were usually created as sets of complete and isolated HTML text files stored on a web server. More recently, websites are more often created using content management or wiki software with, initially, very little content. Contributors to these systems, who may be paid staff, members of a club or other organization or members of the public, fill underlying databases with content using editing pages designed for that purpose, while casual visitors view and read this content in its final HTML form. There may or may not be editorial, approval and security systems built into the process of taking newly entered content and making it available to the target visitors.

Communication

E-mail is an important communications service available on the Internet. The concept of sending electronic text messages between parties in a way analogous to mailing letters or memos predates the creation of the Internet. Today it can be important to distinguish between internet and internal e-mail systems. Internet e-mail may travel and be stored unencrypted on many other networks and machines out of both the sender's and the recipient's control. During this time it is quite possible for the content to be read and even tampered with by third parties, if anyone considers it important enough. Purely internal or intranet mail systems, where the information never leaves the corporate or organization's network, are much more secure, although in any organization there will be IT and other personnel whose job may involve monitoring, and occasionally accessing, the e-mail of other employees not addressed to them. Pictures, documents and other files can be sent as e-mail attachments. E-mails can be cc-ed to multiple e-mail addresses.

Internet telephony is another common communications service made possible by the creation of the Internet. VoIP stands for Voice-over-Internet Protocol, referring to the protocol that underlies all Internet communication. The idea began in the early 1990s with walkie-talkie-like voice applications for personal computers. In recent years many VoIP systems have become as easy to use and as convenient as a normal telephone. The benefit is that, as the Internet carries the voice traffic, VoIP can be free or cost much less than a traditional telephone call, especially over long distances and especially for those with always-on Internet connections such as cable or ADSL. VoIP is maturing into a competitive alternative to traditional telephone service. Interoperability between different providers has improved and the ability to call or receive a call from a traditional telephone is available. Simple, inexpensive VoIP network adapters are available that eliminate the need for a personal computer.

Voice quality can still vary from call to call but is often equal to and can even exceed that of traditional calls. Remaining problems for VoIP include emergency telephone number dialling and reliability. Currently, a few VoIP providers provide an emergency service, but it is not universally available. Traditional phones are line-powered and operate during a power failure; VoIP does not do so without a backup power source for the phone equipment and the Internet access devices. VoIP has also become increasingly popular for gaming applications, as a form of communication between players. Popular VoIP clients for gaming include Ventrilo and Teamspeak. Wii, PlayStation 3, and Xbox 360 also offer VoIP chat features.

Data transfer

File sharing is an example of transferring large amounts of data across the Internet. A computer file can be e-mailed to customers, colleagues and friends as an attachment. It can be uploaded to a website or FTP server for easy download by others. It can be put into a "shared location" or onto a file server for instant use by colleagues. The load of bulk downloads to many users can be eased by the use of "mirror" servers or peer-to-peer networks. In any of these cases, access to the file may be controlled by user authentication, the transit of the file over the Internet may be obscured by encryption, and money may change hands for access to the file. The price can be paid by the remote charging of funds from, for example, a credit card whose details are also passed—usually fully encrypted—across the Internet. The origin and authenticity of the file received may be checked by digital signatures or by MD5 or other message digests. These simple features of the Internet, over a worldwide basis, are changing the production, sale, and distribution of anything that can be reduced to a computer file for transmission. This includes all manner of print publications, software products, news, music, film, video, photography, graphics and the other arts. This in turn has caused seismic shifts in each of the existing industries that previously controlled the production and distribution of these products.

Streaming media refers to the act that many existing radio and television broadcasters promote Internet "feeds" of their live audio and video streams (for example, the BBC). They may also allow time-shift viewing or listening such as Preview, Classic Clips and Listen Again features. These providers have been joined by a range of pure Internet "broadcasters" who never had on-air licenses. This means that an Internet-connected device, such as a computer or something more specific, can be used to access on-line media in much the same way as was previously possible only with a television or radio receiver. The range of material is much wider, from pornography to highly specialized, technical webcasts. Podcasting is a variation on this theme, where—usually audio—material is downloaded and played back on a computer or shifted to a portable media player to be listened to on the move. These techniques using simple equipment allow anybody, with little censorship or licensing control, to broadcast audio-visual material worldwide.

Webcams can be seen as an even lower-budget extension of this phenomenon. While some webcams can give full-frame-rate video, the picture is usually either small or updates slowly. Internet users can watch animals around an African waterhole, ships in the Panama Canal, traffic at a local roundabout or monitor their own premises, live and in real time. Video chat rooms and video conferencing are also popular with many uses being found for personal webcams, with and without two-way sound. YouTube was founded on 15 February 2005 and is now the leading website for free streaming video with a vast number of users. It uses a flash-based web player to stream and show video files. Registered users may upload an unlimited amount of video and build their own personal profile. YouTube claims that its users watch hundreds of millions, and upload hundreds of thousands, of videos daily.^[13]

Accessibility

See also: Internet access worldwide, List of countries by number of Internet users, English on the Internet, Global Internet usage, and Unicode

The prevalent language for communication on the Internet is English. This may be a result of the origin of the Internet, as well as English's role as a lingua franca. It may also be related to the poor capability of early computers, largely originating in the United States, to handle characters other than those in the English variant of the Latin alphabet. After English (29% of Web visitors) the most requested languages on the World Wide Web are Chinese (22%), Spanish (8%), Japanese (6%), French (5%), Portuguese and German (4% each), Arabic (3%) and Russian and Korean (2% each).^[14] By region, 42% of the world's Internet users are based in Asia, 24% in Europe, 15% in North America, 11% in Latin America and the Caribbean taken together, 4% in Africa, 3% in the Middle East and 1% in Australia/Oceania.^[15] The Internet's technologies have developed enough in recent years, especially in the use of Unicode, that good facilities are available for development and communication in most widely used languages. However, some glitches such as mojibake (incorrect display of foreign language characters, also known as kryakozyabry) still remain.

Common methods of Internet access in homes include dial-up, landline broadband (over coaxial cable, fiber optic or copper wires), Wi-Fi, satellite and 3G technology cell phones. Public places to use the Internet include libraries and Internet cafes, where computers with Internet connections are available. There are also Internet access points in many public places such as airport halls and coffee shops, in some cases just for brief use while standing. Various terms are used, such as "public Internet kiosk", "public access terminal", and "Web payphone". Many hotels now also have public terminals, though these are usually fee-based. These terminals are widely accessed for various usage like ticket booking, bank deposit, online payment etc. Wi-Fi provides wireless access to computer networks, and therefore can do so to the Internet itself. Hotspots providing such access include Wi-Fi cafes, where would-be users need to bring their own wireless-enabled devices such as a laptop or PDA. These services may be free to all, free to customers only, or fee-based. A hotspot need not be limited to a confined location. A whole campus or park, or even an entire city can be enabled. Grassroots efforts have led to wireless community networks. Commercial Wi-Fi services covering large city areas are in place in London, Vienna, Toronto, San Francisco, Philadelphia, Chicago and Pittsburgh. The Internet can then be accessed from such places as a park bench.^[16] Apart from Wi-Fi, there have been experiments with proprietary mobile wireless networks like Ricochet, various high-speed data services over cellular phone networks, and fixed wireless services. High-end mobile phones such as smartphones generally come with Internet access through the phone network. Web browsers such as Opera are available on these advanced handsets, which can also run a wide variety of other Internet software. More mobile phones have Internet access than PCs, though this is not as widely used. An Internet access provider and protocol matrix differentiates the methods used to get online.

Social impact

Main article: Sociology of the Internet

The Internet has made possible entirely new forms of social interaction, activities and organizing, thanks to its basic features such as widespread usability and access. Social networking websites such as Facebook and MySpace have created a new form of socialization and interaction. Users of these sites are able to add a wide variety of items to their personal pages, to indicate common interests, and to connect with others. It is also possible to find a large circle of existing acquaintances, especially if a site allows users to utilize their real names, and to allow communication among large existing groups of people. Sites like meetup.com exist to allow wider announcement of groups which may exist mainly for face-to-face meetings, but which may have a variety of minor interactions over their group's site at meetup.org, or other similar sites.

The first generation is now being raised with widespread availability of Internet connectivity, with consequences for privacy, identity, and copyright concerns. These "Digital natives" face a variety of concerns that were not present for prior generations.

In democratic societies, the Internet has achieved new relevance as a political tool, leading to Internet censorship by some states. The presidential campaign of Howard Dean in 2004 in the United States became famous for its ability to generate donations via the Internet. Many political groups use the Internet to achieve a whole new method of organizing, in order to carry out Internet activism. Some governments, such as those of Iran, North Korea, Myanmar, the People's Republic of China, and Saudi Arabia, restrict what people in their countries can access on the Internet, especially political and religious content. This is accomplished through software that filters domains and content so that they may not be easily accessed or obtained without elaborate circumvention.

In Norway, Denmark, Finland^[17] and Sweden, major Internet service providers have voluntarily (possibly to avoid such an arrangement being turned into law) agreed to restrict access to sites listed by police. While this list of forbidden URLs is only supposed to contain addresses of known child pornography sites, the content of the list is secret. Many countries, including the United States, have enacted laws making the possession or distribution of certain material, such as child pornography, illegal, but do not use filtering software. There are many free and commercially available software programs, called content-control software, with which a user can choose to block offensive websites on individual computers or networks, such as to limit a child's access to pornography or violence.

The Internet has been a major source of leisure since before the World Wide Web, with entertaining social experiments such as MUDs and MOOs being conducted on university servers, and humor-related Usenet groups receiving much of the main traffic. Today, many Internet forums have sections devoted to games and funny videos; short cartoons in the form of Flash movies are also popular. Over 6 million people use blogs or message boards as a means of communication and for the sharing of ideas. The pornography and gambling industries have both taken full advantage of the World Wide Web, and often provide a significant source of advertising revenue for other websites. Although many governments have attempted to put restrictions on both industries' use of the Internet, this has generally failed to stop their widespread popularity.

One main area of leisure on the Internet is multiplayer gaming. This form of leisure creates communities, bringing people of all ages and origins to enjoy the fast-paced world of multiplayer games. These range from MMORPG to first-person shooters, from role-playing games to online gambling. This has revolutionized the way many people interact and spend their free time on the Internet. While online gaming has been around since the 1970s, modern modes of online gaming began with services such as GameSpy and MPlayer, to which players of games would typically subscribe. Non-subscribers were limited to certain types of game play or certain games. Many use the Internet to access and download music, movies and other works for their enjoyment and relaxation. As discussed above, there are paid and unpaid sources for all of these, using centralized servers and distributed peer-to-peer technologies. Some of these sources take more care over the original artists' rights and over copyright laws than others.

Many use the World Wide Web to access news, weather and sports reports, to plan and book holidays and to find out more about their random ideas and casual interests. People use chat, messaging and e-mail to make and stay in touch with friends worldwide, sometimes in the same way as some previously had pen pals. Social networking websites like MySpace, Facebook and many others like them also put and keep people in contact for their enjoyment. The Internet has seen a growing number of Web desktops, where users can access their files, folders, and settings via the Internet. Cyberslacking can become a serious drain on corporate resources; the average UK employee spent 57 minutes a day surfing the Web while at work, according to a 2003 study by Peninsula Business Services.

From Wikipedia, the free encyclopedia

Coming Back From China? Throw Your Phone Out

2009-10-08T05:32:00.000-07:00

According to the

government, if you're coming back from China you probably want to ditch your phone. You know, just in case. More »

http://gizmodo.com

Wireless Infrared Home Security System From LoveToKnow Safety

2009-10-08T05:25:00.000-07:00

To help protect your home and family, consider installing a wireless infrared home security system. While no one likes to think about their home being broken into, the fact is a burglar can strike any of us—at any time. Even if you live in a low crime neighborhood, that doesn’t stop thieves from targeting your home. No security system is perfect, but having no security system makes your home easier to break into than a home with a system.

http://safety.lovetoknow.com

Sponcer ad

2009-10-08T03:31:00.000-07:00

Get my banner code or make a banner

Sony Handycam TG5V With GPS

2009-10-07T07:31:00.000-07:00

The new TG5V (or TG7 in Europe) is a successor to the Sony Handycam TG1. Weighing at 230 grams and measuring 30mm x 117mm x 62mm, the camcorder is now lighter and smaller than its predecessor. The video camera offers 16GB of Internal memory (or 6hours of video recoding), a 30mm wide angle, a new BIONZ and Exemor image processor for low light recording, and new coating for the Camera body to prevent scratches. An integrated GPS antenna and NAVTEQ maps can be used to automatically geo-tag videos or images to keep a record of the exact shooting location. The Sony Handycam TG5V will be available in Japan from April 20 onward.

http://www.techfresh.net/

Cellular Phone/GPS "Burs t" Tracking Device Jammer

2009-09-16T00:00:00.000-07:00

Cellular Phone/GPS "Burs

t" Tracking Device Jammer

Developed for GBPPR's Directorate of Operations case officers operating out in the field, this device uses a neat little trick to j
am most of the common cellular modem (CDPD or analog AMPS) controlled GPS tracking devices.

First, a custom cut Fox 225.06 MHz clock oscillator is filtered with a 1575 MHz GPS bandpass filter isolating its 1575.42 MHz 7^th harmonic. This harmonic is further amplified and sent to a small, low cost, surface mount antenna. This produces a limited range continous wave (CW) jammer centered on the GPS L1 frequency.

This jammer only has an effective range of a few meters and only jams the lower-cost standard positioning service (SPS) GPS receivers.

Second, a common 45 MHz clock oscillator drives the local oscillator port on a Mini-Circuits mixer. The RF & IF ports and connected to two small, low cost, surface mount 800 MHz antennas. Here's the trick, any cellular phone that attempts to call out is "jammed" by its own signal! This works because the phone's transmit and receive frequency are always separated by 45 MHz.

Example: your phone transmits on 837 MHz and receives at 882 MHz. If you were to mix the 837 MHz transmitted signal with a 45 MHz signal, the new mixer output frequency would be 882 MHz - and the phone would essentially jam itself.

This is very useful against "burst" tracking devices which may record your movements for a week or so at a time, then wait until 3 A.M. when your sleeping to burst out a quick phone call to KGB headquarters to upload the tracking data. It also prevents any computer record of phone calls or RF direction finding of the phone's signal from revealing your location.

This jammer also only has an effective range of a few meters (if that) and only jams analog AMPS cellular phones or CDPD modems.

This jammer should also work on the General Motors' (GM) OnStar Navigation System. The unit I saw utilized an old Motorola AMPS phone for communication.

Schematic

Cellular Phone/GPS "Burst" Tracking Device Jammer Schematic (57k PNG)

Device for Detecting GPS Receivers

Here is an example of using an old AM radio to detect GPS receivers.

Device for Detecting GPS Receivers

Simple 800 MHz Cellular Phone Jammer

Passive cellular phone jammer.

Simple 800 MHz Cellular Phone Jammer

The Ti-GPS receiver

2009-09-15T23:36:00.000-07:00

The Ti-GPS receiver coupled with your Laptop or Pocket PC PDA allows you the easiest way to get FREE GPS access

There is NO Monthly fee, and never any service fees. With the Ti-GPS you are always able to receive free worldwide GPS tracking using the American GPS satellite networks.

Many people are misinformed on the topic of GPS, fully unaware there is in fact no monthly fee for GPS access. Something which can be fully realized with the AyAy Sir Ti-GPS receiver. The advertising of many other automotive GPS navigation systems suggests otherwise, requiring monthly access fees. This is a fairly common misconception, one which needs to be laid to rest. GPS(Global Positioning System) was designed for and is operated by the US Military, and is entirely funded and controlled by the US Department of Defense. GPS satellite tracking signals are offered as a FREE public service by the American Government, and are a free resource regardless of the application, be it piloting, sailing, or driving. There are absolutely NO monthly fees or setup fees required for access to GPS tracking signals.

Pictured is a Sony VAIO laptop equipped with the AyAy Sir Ti-GPS, allowing it to function as a full fledged 3D GPS navigation system.

http://www.ayaysir.com

The Open GPS Tracker

2009-09-09T10:56:00.000-07:00

The Open GPS Tracker is a small device which plugs into a $20 prepaid mobile phone to make a GPS tracker. The Tracker responds to text message commands, detects motion, and sends you its exact position, ready for Google Maps or your mapping software. The Tracker firmware is open source and user-customizable. This looks like a great project if you’re into GPS projects.

source:http://www.youritronics.com

AVR Sound Effects Processor

2009-08-30T03:54:00.000-07:00

AVR Sound Effects Processor

This project devised by two Cornell students in 2003,they wrote: For this endeavour, we first built an input stage that will amplify the input signal, as well as bias it to 2.5V (since the ADC can only sample positive signals). The ADC (MAX1111) is controlled by the microprocessor (Mega 32) using the SPI interface which was much easier than manually configuring a port to interface with the ADC(believe me, we tried that). We set the Mega 32 to sample the input at about 12 KHz which is fast enough to meet the Nyquist requirement for analog to digital sampling. The digital effects were done using by manipulating the input (which will be discussed in the Design page) and the output is passed to a R-2R DAC to a output amplifier stage and finally, to the speaker.

source:http://www.coolcircuit.com

PIC16F84A TEMPERATURE CONTROLLER

2009-08-30T03:51:00.000-07:00

PIC16F84A TEMPERATURE CONTROLLER

The module uses an inexpensive 8 bit Temperature Sensor the TMP37 from Analog Devices.Since the data was analog and the PIC16f84 does not have an analog input,an external ADC had to be used.Texas Instruments’ TLC549 was chosen for this.The advantage of this ADC was that it could communicate with the microcontroller serially.You may also use similar ADCs from Maxim-IC.The LCD is a normal 16×2 display which uses the Hitachi Controller HD44780
PIC 16F84A TEMPERATURE CONTROLLER
The module uses an inexpensive 8 bit Temperature Sensor the TMP37 from Analog Devices.Since the data was analog and the PIC16f84 does not have an analog input,an external ADC had to be used.Texas Instruments’ TLC549 was chosen for this.The advantage of this ADC was that it could communicate with the microcontroller serially.You may also use similar ADCs from Maxim-IC.The LCD is a normal 16×2 display which uses the Hitachi Controller HD44780

source:http://www.coolcircuit.com

Compact standalone ECG

2009-08-30T03:50:00.000-07:00

Compact standalone ECG

This project is for detecting human ECG (Electrocardiogram, or EKG). A tiny amplifier is embedded (<1ma). style="text-decoration: underline;">

source:http://www.coolcircuit.com

Beam Robot

2009-08-30T03:36:00.000-07:00

Beam Robot

This robot control by PIC16F818 which has a lot of features that work well in this situation. As you can see from the Schematic and Source Listing, position pulses for the 2 servos are generated dirctly from the PIC. Also, the room light level, battery condition, and servo power draw (indicating mechanical loading) can be measured with the internal ADC.

http://www.coolcircuit.com

PC temperature control

2009-08-30T03:35:00.000-07:00

PC temperature control

This is a standalone temperature and fan monitoring and control unit for the PC. It uses the temperature readings to adjust fan speeds in order to regulate temperature and noise. The system is flexible in that it can be configured to be either completely autonomous, or set up to be configurable. It is also highly configurable in the setting up of the features and parameters. The entire unit is controlled by the 2 Atmel Mega32 MCUs - 1 for the main control unit and 1 for the RF remote control, with inputs to the ADC (for thermal sensors), port pins, RS232 serial connection and output to the LCD, port pins and RS232 serial connection. The RF remote control controls specific settings of the unit. The main unit is powered off a standard 4-pin PC Molex power connector while the remote control is powered off a 9V battery.

source:http://www.coolcircuit.com

Earn money

2009-08-27T11:52:00.000-07:00

Hidden Surveillance Cameras

2009-08-26T11:08:00.000-07:00



Hidden Surveillance Cameras Hidden surveillance cameras can be very beneficial, especially if you have a babysitter or nanny for your child. These surveillance cameras are built into ordinary devices such as smoke detectors, alarm clocks, home security sensors, and many more. Hidden surveillance cameras are camouflaged so well that no one will ever know they are being video recorded. The only way to know for sure how your child is being treated while your away is with hidden surveillance cameras. Thank you for visiting our site. We hope we were able to help you with your home surveillance system needs. Source:http://www.surveillancesystemsplus.com/

Home Alarm system

2009-08-26T10:33:00.000-07:00

Home Alarm system

Simple, Secure, Fast and Cheap.

only few components
max security with Rolling Code TX and Shock Sensor with variable sensitivity
the alarm module can be assembled in only 2 hours and it don't need manual preset
with this characteristics is the most cheap system and the total cost could be reduced using a normal external sounder (escl. AG8)
GSM module will be add in the future for a remote control

Introduction

This project born to protect my house.

Transmitters

All the functions of this Home Alarm system will be activated and deactivated by this little Rolling Code

transmitter show in the photo

The Rolling Code is the most secure method to transmit data and reduce risk of scan.

With this method the serial number of any transmitter is stored in the receiver at the learning time.

This serial number is composed by many bits so to find it with a scanner it is impossible because it need many time.

Four button for these functions:
A) manual start of sound and light alarm
B) enable protection of the system
C) make a phone call (future characteristic)
D) disable protection of the system

External Sounder & Strobe

The AG8 is a microprocessor controlled external sounder with a built in strobe. It was designed for simple installation, and offers a wide variety of features and safeguards. Features include silent installation, and two flash settings, optional sounder settings (multi-sweep or two tone), selectable timer, simple testing, and diagnostic LED's that can be viewed after the covers are fitted .

· High impact polycarbonate moulding.

· Horizontal or vertical mounting.

· One standard built-in wrap around strobe lens.

· Double skin construction.

· NiCad back-up battery included.

· Multi colour options.

· Front and rear tamper.

· Two Piezo sounders.

· Dual tones.

Internal Sounder

ST-220: internal sounder with one piezo speaker

Internal signal

I use an internal red light like this one, fix up my door, to know if the alarm is active

Sensors

CTC047: magnetic contact for the door

IMPACTOR: a smart shock sensors for the door In built adjustable analyzer

Normal latching and non latching setting
Wide dynamic range of sensitivity with High-Low sensitivity setting.
Pulse count options, one or two pulses.
Power on reset
Requires 12 VDC
NC relay and red led indicator

White color, dimensions 21 x 26 x 87 mm

Alarm module

This module use these components:

PIC 16F877A Enhanced Flash microprocessor
RM4SHR-M 4 channel Rolling Code Superheterodyne Receiver Module with decoder
3 x BC337 transistor
3 x 12v pcb rele'
3 x red micro leds
1 x microswitch 2 way 2 positions
LM317 Adjustable Regulator
7805 Positive Voltage Regulators
Battery 12v 20Ah
3 x 1N5406 diodes
5 x 1N4004 diodes
3 x micro red led
1 x red led
1 x blue red
`4 x 560ohm 1/4w
3 x 4700ohm 1/4w
3 x 10Kohm 1/4w
1 x 220ohm 1/4w
1 x 1Kohm 1/4w
1 x 1Kohm orizziontal trimmer
2 x 18pF ceramic capacitors
1 x 20MHz quartz
1 x 0.1uF 63v poliester
2 x 100uF 25v electr. capacitor.
1 x 4700uF 35v electr. capacitor
1 x Toroidal transformer 12v-0-12v 50VA

1 x 28 pin socket

Many of these components are easy to find in any electronic shop

The blue led connected to the pin RA3 of microcontroller is used like a memory to know if the alarm has been activated by an event and its reset after a reactivation.

The red led connnected to the power supply before the 1N5406 diode is used to check the power supply connection.

Offcource the other 3 microled red near the relais are used to check the output state.

Alarm module firmware

To program the 16F876A Microchip microcontroller I have used the PICKIT 2 USB Development Programmer/Debugger (cod. PG164120 or DV164121) with a cost about 40-50$.

I love the C language because it is very simple if compared to assembler.

The my C source has been compiled with HI-TECH PICC-Lite^™ Compiler.

HI-TECH Software has provided a freeware HI-TECH PICC-Lite compiler as a tool for hobbyists and students, but the licence allows its use for commercial purposes as well. It is ideal as a teaching tool for an introduction into the 'C' language and embedded programing on a Microchip device.

Here you can download the last version 10 July 2007

Installation

Built remote control Aeroplane

2009-08-25T04:24:00.000-07:00

Building Remote

Control

Airplanes That Rock

There is no more exciting experience than having a bunch of parts built together into a flying remote control airplane - especially if you do it all yourself. Of course building an RC model is more involved than building most of the other types of model airplanes - probably only the scale models can beat them.

Most hobbyists don't really build remote control airplanes from scratch. It's too hard because of the electronics needed. Of course if you are a radio enthusiast or an engineer you may have the chance to create the remote control system yourself, but most people won't do it.

That's why there are kits. In fact before almost-ready-to-fly and ready-to-fly model airplanes appeared, all the RC models were sold only like that - in kit form.

Types of Kits
All kits are similar - they contain parts which you should build together. What is different is the material of the parts. One of the best choices is wood - usually balsa which is light and strong.

Nowadays materials like plastic, fibreglass and foam are getting more popular. I have yet to see a kit with metal parts, but some very light metal could be a good option.

When choosing a kit, check out how it is cut. The laser-cut kits are easy to assemble and the models created from them are precious. Other types of kits are machine cut and die cut. Such are usually the wood kits and they may require some additional work on your side before you can assemble the plane.

The tools required
Some easy laser-cut plastic kits do not require any tools except a turnscrew and some glue. You may need quite small and precious turnscrew however, especially for the electronics and the engine.

If you work with machine-cut or die-cut wooden parts you will need sandpaper to fine the corpse, wings and other parts.

The glue is often included in the kits but if it is not or if you have to buy additional, pick appropriate glue for your materials. The carpenter's yellow glue is best for wood, while silicone or canopy glue are better for plastic and fibreglass kits.

At the end you will want to paint your remote control airplane. The plastic kits often come already painted, but that's never the case with wood. Before painting you may want to apply a technique called dry-brushing. It creates a realistically looking model airplanes. Sometimes dry brushing and painting are the most important things to do if you want your airplane to look good.

Of course the most important characteristic of the remote controlled airplanes is that they can fly and that you can control their flight. So when finishing your kit you must be careful not to disturb some of the fine details of the electronics or the engine.

If any one have more detail plz send us by comment

PXP looks like a PSP, emulates the classics

2009-08-24T04:03:00.000-07:00

PXP looks like a PSP, emulates the classics

At $90, it's simply too expensive, but this PSP knockoff runs ROMS from lots of classic systems: NES, SNES, Gameboy 'n' Color, and the Megadrive/Genesis. As Gizmodo commenter Zaxxon Q Blaque points out, it appears to be a Dingoo in PSP clothing. [Chinagrabber via Technabob and Giz]

Source:http://gadgets.boingboing.net

PeeWee, the child-resistant laptop

2009-08-24T04:01:00.000-07:00

PeeWee, the child-resistant laptop

PeeWee PC is splash-resistant and has a swiveling touchscreen display: ingredients that make it perfect, all other things assumed present, for the wee ones. From the blurb:

PeeWee PC loads each Pivot Tablet Laptop with 10 age appropriate software and game titles for Pre-K, Early Elementary, or Upper Elementary students. PeeWee also includes its proprietary security suite on each laptop, giving parents full control of how and when their children use the laptop. The PeeWee security software allows parents to limit how much time their children spend browsing the internet (on a daily or weekly basis), block inappropriate sites with any version of any web browser, take screen shots, view browsing history, and even control the laptop remotely.

It's otherwise a regulation netbook, and $600.

Source:http://gadgets.boingboing.net

A weekend with the Flip UltraHD

2009-08-24T03:59:00.000-07:00

Review: A weekend with the Flip UltraHD

I spent the weekend with Pure Digital's new Flip UltraHD. It looks and feels a lot like the first-gen Flip Ultra, except it's high-def (720 pixels), has an HDMI output (really), and 16:9 widescreen. At 4.25" x 2.19" x 1.17", it's slightly bigger than the first-gen Flip Ultra and a lot bigger than the sleek MinoHD. The footprint isn't the only aspect that's bigger: instead of a 1.5" screen, the UltraHD has a vivid 2-incher. It also boasts 8 gigs of memory -- double that of the MinoHD and 4x the first-gen Ultra. It runs on two AA batteries (unlike the Mino) and costs $200 (not bad, but pricier than pocket cams from competitors like Kodak).

It was a lovely Northern California weekend, and I took these two video clips to test it in different conditions. The first (above) is of Steven after he got bonked in the head by his own surfboard, and the second (below) is of a fire pit at my friend's BBQ. I took side-by-side clips using my old Sanyo Xacti. The Flip dominated at canceling out wind noise at the beach. But when the sun set and we were sitting around a fire pit, the Flip didn't do so hot. The non-HD, 6-megapixel Xacti actually did a better job capturing the flames.

I did find, though, that I was much more inclined to pull the Flip out of my bag than the Xacti -- mainly because it's still one of the simplest, most user-friendly pocketcams out there. With little practice, I was able to navigate the controls without even looking. Since I knew I could go home and plug it into my laptop and TV without dealing with a cable or dock, I found myself reaching for it first by Sunday.

Source:http://gadgets.boingboing.net

New MediaSmart box cuts price (and corners)

2009-08-24T03:58:00.000-07:00

New MediaSmart box cuts price (and corners)

Monolithic in design and simple in principle, HP's latest MediaSmart home server, the LX195, runs Windows HS and has a single 640GB hard drive, gigabit ethernet, a 1.GHz Atom CPU and just 1GB of RAM. Though the specs are unimpressive, it's only $390 and has 4 USB ports--consider it intermediary between high-end local backup and low-end NAS.

Source:http://gadgets.boingboing.net

Cupertino's tablet netbook

2009-08-24T03:56:00.000-07:00

Cupertino's tablet netbook: just a concept?

Illustrated by MacFormat's Adam Benton, this mockup strikes me as convincingly conservative -- but only if you accept the proposition that Apple would make it at all. I've been imagining something similar, but even smaller.

Source:http://gadgets.boingboing.net

Technology

2009-08-24T03:55:00.000-07:00

Technology

Technology is so pervasive in the world today that its influence is recognized in even some of the most mundane tasks. Information technology, electronic commerce, and advanced telecommunications continue to have a major impact on the economic vitality of just about every industry. These new technologies empower companies and customers while challenging traditional business models and economic rules.

Though the sector has matured over the past 25 years, technology and telecommunications companies still face constant challenges. Access to capital, faster time-to-market, recruiting and retaining talent, and managing stakeholder and financial market expectations remain important and critical success factors. Convergence, an established trend prevalent throughout all technology industries, brings new and fundamental challenges as well.

Opportunities to improve the productivity of mergers and acquisitions, alternatives to outsourcing, and challenges of global expansion are all areas of Thomas Group's expertise.

Case Summary

Thomas Group recently helped a major technology company increase its responsiveness to market needs and its ability to bring more new and innovative products to market.

As the COO of the company said, "We changed our culture, processes, and paradigms resulting in performance that was well beyond our initial beliefs.”

Thomas Group and management were able to achieved significant results:

Product development cycle time reduced by 33%
Cycle time in equipment engineering reduced by 30%
Time to market improved by 40%
On-time delivery increased from 50% to 90%
First pass yield (quality) improved from 70% to 95%

How Thomas Group Can Help You

Thomas Group has helped dozens of technology companies like yours to improve operations through our unique brand of functional assessment and business process improvement solutions. At Thomas Group, we help our clients better manage the intricate web of functional interdependencies that comprise a business enterprise. We teach them to organize with single-minded purpose and recognize the importance of individual contributions, and, when necessary, we help them apply technology more logically in their operations.

Source:http://www.thomasgroup.com

Data from Space

2009-08-24T03:43:00.000-07:00

Data from Space: Adaptive Array Network Could Improve Access to NASA's Earth Observing Satellites

Sophisticated signal processing techniques and simple proof-of-principle antenna arrays built from PVC pipe, aluminum foil and copper wire could revolutionize the way NASA obtains data from its Earth observing satellites.

Graduate Research Assistant Billy Barott adjusts an antenna array being tested on the roof of the Georgia Centers for Advanced Telecommunications Technology (GCATT) building at Georgia Tech.
Georgia Tech Photo: Gary Meek	300 dpi JPG version

If the adaptive array system being studied by NASA and Georgia Institute of Technology researchers ultimately proves feasible, it could dramatically decrease the cost of building and maintaining ground stations, thus enabling the cost-effective construction of many more ground stations. Ultimately, that could make information from the space agency’s Earth-observing satellites more widely and rapidly available.

The “off-the-shelf” technology has already demonstrated that it can successfully receive one satellite telemetry frequency.

“The dream would be to provide total global coverage with these antenna systems and to network the systems together to make these NASA information services available to anybody sitting at a computer, almost like video-on-demand,” explained Mary Ann Ingram, a professor in Georgia Tech’s School of Electrical and Computer Engineering. “Timely information from Earth-observing satellites could be useful in many ways, such as directing operations to fight a forest fire, for instance.”

Image from EO-1 shows damage from a May 2002 tornado in LaPlata, Maryland.
Image Courtesy of NASA

Information from satellites such as Earth Observing-1 (EO-1) is now downlinked to various 11-meter dishes, primarily in the Arctic Circle, where sub-zero temperatures create maintenance and reliability issues for their complex aiming mechanisms. Typically, satellites such as EO-1 are in contact with these antenna systems between five and eight times per day for ten minutes at a time. The present antenna systems cost about $4 million each, and require resident crews to operate and maintain them.

The NASA/Georgia Tech project envisions replacing these antennas with a network of inexpensive antenna arrays that would have no moving parts and use sophisticated software – instead of careful aiming – to gather data from the satellites. The network could lower operational costs while improving access to the information.

“When people use cell phones to make calls, there are no moving parts on the antennas,” noted Dan Mandl, mission director for NASA’s EO-1 program at Goddard Space Flight Center near Washington. “What I would like to do is build a continuous cell-like network around the world that would provide almost unlimited opportunities to downlink data.”

Georgia Tech researchers pose with an antenna array being tested on the roof of the Georgia Centers for Advanced Telecommunications Technology (GCATT) building at Georgia Tech.
Georgia Tech Photo: Gary Meek	300 dpi JPG version

Mandl compared NASA’s existing downlink system to old-fashioned pay phones located off expressway exits. “If you witness an accident, you can open your cell phone and call for assistance,” he said. “But if you don’t have a cell phone, you have to get off the highway at the next exit and hunt for a pay phone. What we would like to do is give these satellites the equivalent of cell phones to allow anytime, anywhere contact.”

The proof-of-principle adaptive arrays being tested by Ingram and her research team are built from inexpensive components, including common PVC piping and aluminum foil. Signals from the four antennas are analyzed using a processing technique that learns to improve its performance by constructively combining scattered and reflected versions of the signal, and by suppressing noise and interference. That eliminates the need for costly front-end hardware and precise aiming of the antenna arrays, and allows flexibility in the location of the ground station.

Mary Ann Ingram, a professor in Georgia Tech's School of Electrical and Computer Engineering, poses with an antenna array being tested on the roof of the Georgia Centers for Advanced Telecommunications Technology (GCATT) building.
Georgia Tech Photo: Gary Meek	300 dpi JPG version

“Instead of one big aperture from an 11-meter dish, we’re going to use several smaller apertures being developed by NASA Glenn Research Center in Cleveland, in collaboration with industry and academia. We will connect them with digital signal processing,” Ingram explained. “A smaller aperture has a wider beam, so the tracking requirement won’t be as great. They may pick up interference, especially in tracking a satellite at a low elevation angle, but because we combine multiple apertures, we can null out the interference.”

The arrays individually won’t provide the same data rate as NASA’s large structures, but having more of them spread out around the world will compensate for that. Network capacity studies show that two ground stations, each with seven 0.75-meter dishes or eight electronically steered antennas, could equal the data capacity of NASA’s existing 11-meter dish at Poker Flats, Alaska – at a significantly lower cost.

Because they don’t depend on precisely aiming a dish, each array could potentially communicate with more than one satellite at a time. “What we’d really like to have is a shared antenna resource in which software is used to separate out the signals,” Mandl explained. “As we get more satellites up in space, this will become more important.”

In testing done on the Georgia Tech campus in Atlanta, the researchers were able to downlink EO-1 information in the S-band, a frequency used for transmissions at low data rates. They had to develop a special filter to eliminate interference from terrestrial repeater stations of popular satellite radio services.

Georgia Tech researchers analyze data from an antenna array being testing on the roof of the Georgia Centers for Advanced Telecommunications Technology (GCATT) building.
Georgia Tech Photo: Gary Meek	300 dpi JPG version

“We have demonstrated the lower rates in S-band, and during the upcoming year we will work on X-band for higher rates,” Mandl said. “Ultimately, we would like to target data rates in the range of 300 megabits per second. The technology could also be used in future research to implement Ka, thus enabling even higher data rates.”

To extend satellite reception time, the researchers are also examining several technical issues such as array-based synchronization and optimization of the tilt angles of the planar apertures of the electronically steered antennas. For example, this optimization could quadruple the download capacity for a ground station with eight co-located electronically steered antennas.

If successful, the adaptive array project would give NASA more flexibility in design of future high data rate satellites that may generate terabits of data on each orbit of the earth. Reliably downlinking that amount of information will require a new approach, Mandl noted.

As the project enters its third year, the following activities are planned:

Testing of inflatable dish antennas to be provided by NASA Glenn Research Center in collaboration with a contractor,
Demonstration of a 6 megabit-per-second downlink from NASA’s SAC-C satellite, and
Testing of electronically steered antennas being developed at the University of Colorado under a grant from NASA Glenn Research Center.

“If you are in the Arctic and the motor moving your dish breaks down, it may take a few weeks to fix it,” Mandl said. “If this could be done with no moving parts using techniques of digital signal processing and software radio, one of the most desirable features will be a high level of reliability. That’s important for space applications and locations where you can just put equipment out there and not require an operator or maintenance crew.”

This effort is funded by NASA’s Earth-Sun System Technology Office (ESTO) and represents a collaborative effort between the Georgia Institute of Technology, NASA Goddard Space Flight Center (Greenbelt, MD), NASA Glenn Research Center (Cleveland, OH), Saquish Group, Inc., and the University of Colorado at Boulder.

Source:http://gtresearchnews.gatech.edu

Proximity card attendnace & access control system

2009-08-24T03:00:00.000-07:00

Proximity card attendnace & access control system

RFID Proximity cards are simple and easy to use; simply presenting a card to a proximity reader is quicker and easier than swiping it. Proximity cards and readers also do not wear with each punch because no contact is made with the reader.

Popularly called as swipe card attendance system is a 125 Khz proximity card attendance device which comes with proximity card based technology and powerful time attendance software. These are used to record attendance in offices and other institutions, also these devices can be used

Source:http://planetinsignia.com/

Fire & Intrusion alarm system

2009-08-24T02:59:00.000-07:00

Fire & Intrusion alarm system

Electronic anti-intrusion systems reliably detect anybody trying to break into a building and immediately trigger the alarm. If you want 24-hour surveillance, the system can be connected to an alarm monitoring centre.

Various products can be combined to design a intrusion and fire alram sytem such as Cctv, intrusion burglar alarm system, fire alarm system, automatic fire detection addressable & conventional

Source:http://planetinsignia.com/

Fingerprint Attendance & Access Control device

2009-08-24T02:58:00.000-07:00

Biometrics : Fingerprint Attendance & Access Control device

Biometric products using fingerprint recogition technology are used as physical access control and attendance system. Insignia provides fingerprint or thumb impression technology as it is popularly know in India for the purpose of attendance marking at factories and offices. Fingerprint attendance helps to eliminate proxy punching and achieves to save on cost of employment.This technology can be used to provide secured access to offices, homes, lifts, Store room and Factories. fingerprint identification inthe most popular biometric identification technique.

Source:http://planetinsignia.com/

Close circuit Camera Survillance system

2009-08-24T02:57:00.000-07:00

CCTV : Close circuit Camera Survillance system

The latest technology from CCTV Surveillance offers you high quality DVR recording systems, which can be networked together across multiple sites. CCTV Video Surveillannce Products are Dome Cameras,C/CS-Mount Cameras,WDR Cameras,IR Cameras,IR Dual Cameras,Zoom Cameras,IP Cameras, Speed Dome Cameras,DVR Cards,PC Based DVR,DVR,Entry DVR,Embedded DVR,ATM DVR,Mobile DVR,Backup Unit, Media DVR,Decoder Card,DVS Decoder,,Lens,Key Board,CCTV Accessories.

source:http://planetinsignia.com/

The Latest in Spy Gear

2009-08-24T00:43:00.000-07:00

The Latest in Spy Gear

Spy Gear

Keeping up with the latest spy gear is a great way to make sure that you are at the cutting edge of surveillance. As technology becomes more advanced, spy gear becomes better and easier to hide. Two of the most recent developments in high tech surveillance have to do with cell phones and with GPS tracking. Both of these technologies have been around for quite some time, but the latest incarnations, cell phone bugs and the Spy Matrix GPS, offer capabilities unparalleled to this date.

Cell phone spy gear has become very sophisticated. There are mini GPS trackers that you can put in cell phones and know where that phone is. That is great for keeping track of teenagers. Additionally, they are helpful in that you can find a loved one who might be in trouble simple by seeing where the cell phone is.

You may also read another relative article : Security Camera

Source:http://images.google.com.pk

Batman’s Latest Spy Technology

2009-08-24T00:40:00.001-07:00

Batman’s Latest Spy Technology

Is this a spy cam created by the military or is it Batman’s latest gadget? Of course it’s a piece of technology made by the military; Batman is a fictitious comic book character. The Army has awarded the University of Michigan College of Engineering a five year $10 million dollar grant to develop this robotic spy plane which bears an uncanny resemblance to a bat.

It’s called the COM-BAT and it’s concept was conceived by the US military for the purpose of gathering real-time data for soldiers. The folks behind the design are also huge fans of The Dark Knight. It’s a six-inch surveillance device that is powered by solar, wind and vibrations. So much for my idea of bat droppings as fuel.

Source:http://www.gearfuse.com

The Latest in Spy Gear

2009-08-24T00:34:00.000-07:00

The Latest in Spy Gear

However, there are even more sophisticated possibilities with cell phones. You can purchase a phone that will allow you to listen in on other people’s conversations. Simply give the phone bug to whomever you want to listen in on, and whenever they make a call, or when someone calls her or him, the phone you carry rings. You can hear the whole conversation. Even better, the phone actually works as a regular cell phone, allowing you to make and receive calls.

The Spy Matrix GPS is the ultimate in global positioning tracking spy gear. It is the smallest real time tracker to date, and includes one of the best mapping systems on the market. This is technology that the spies in the CIA use. Spy Matrix is so small that it can even fit in a purse. Plus, it is more portable than traditional car tracking systems. It can be easily hidden in the car so that a thief won’t even know it is there (and thus won’t know to disable it).

Spy gear is constantly evolving to meet the needs of those who use it. Additionally, with technology advancing as it is, you will be able to do even more. But for now, cell phone bugs and the Spy Matrix GPS are top of the line products that everyone interested in surveillance should include in their spy gear.

Source:http://www.buzzle.com

Zebco

2009-08-24T00:26:00.000-07:00

New and Improved... Be the first to see new 2006 products by the Zebco/Quantum family

Introduction: Being one of the largest and most popular tackle manufactures, the W.C. Bradley family continues to produce new and improved fishing rods and reels for anglers to use in their entire line of brands from Zebco to Quantum. The company has made huge advances in the diversity of their lineup, brand awareness, and general popularity in the last few seasons, and TackleTour is excited to be the first to give you a sneak peek of what's to come in 2006.

Zebco Saltwater Spincast Reels: The Zebco series of spincast reels has gone a long ways from the very first reel over 50 years ago to today's all new and improved designs. Though we found out Zebco will be introducing about 10 new products for 2006, there was one new series that really caught our attention....something we never thought we would ever see, a quality spincast reel designed just for saltwater applications! The all new saltwater specific spincast reels are built with saltwater worthy components and thoroughly tested in their saltwater test chamber for long term durability. The new series contain three models, 33SW, 733SW, and 808SW, that ranges from medium to medium-heavy saltwater fishing applications.

Next Generation PT Baitcast Reels: For 2006 Quantum has upped the ante by introducing the all new next generation Performance Tuned reels. We are thrilled to see these new products sport some of the latest Quantum designs and technologies for enhanced performance. For the next season we see an all new Tour Edition PT reel in both right and left-handed models. The Tour Edition PT will have a regular 6.3:1 ratio and a super-fast "Burner" gears to produce a 7.1:1 ratio for those power fishers. These will be some of the fastest reels available on the market!

In addition to the new Tour Edition PT reel, Quantum has completely redesigned a few of their most popular baitcast reels. The Energy PT gets a complete face lift and will take on the latest and greatest technologies. Like the Tour Edition PT reel, the Energy PT baitcaster will also use the new capless, screw-on handle which provides a more positive lock between the handle and crankshaft. The reel boasts improved quality and performance in an all frame that promises to be much more ergonomic.

Source:http://www.tackletour.com

Mio C520T Satellite Navigator

2009-08-24T00:18:00.000-07:00

Mio C520T Satellite Navigator

The wide screened Mio C520T Satellite Navigator, promises to give accurate guidance on road, with

some of the latest technologies built into it. Finding your way through the city, and reaching your destination is made easy with this portable co-pilot.

The handheld allows you to type in the post code of the location you want to reach and guides you along the way, with audio and visual signals. With the TMC feature, that comes integrated in its cradle, you can navigate around traffic jams and other obstructions, and reach your destination faster. A unique feature that the navigator offers, is its split screen, that allows you to watch a small section on the side of the screen, apart from the main navigation view. You can choose to view your next four manoeuvres or local Points of Interest or route/timing data or speed camera locations in this side view. Attending phone calls while driving is made easier as well, with the bluetooth hands-free technology. This allows linking of a blue tooth enabled mobile phone to the navigator, which switches from navigation mode to phone mode. Also, deceive speed cameras while driving, with the prior warning about their locations, given by the navigator. This service comes for free for a year after purchase. A good set of Points of Interest have been built into the device as well, which makes it easy to locate petrol bunks, cash machines, parking lots, hotels and more. The powerful SiRFstar III GPS receiver along with the MioMap v3.3 software, are employed by the device, to do a good job of picking up signals from the satellite, holding them, even amidst the city or countryside and doing necessary calculations for route guidance.

Apart from navigation, a built-in SD/MMC memory card slot, lets you listen to music, or view your pictures from an SD card as well. A USB 2.0 port is available too, to transfer data to and from a PC. Mio C520T GPS’s 1GB ROM holds Tele Atlas maps of 22 countries, which include Great Britain, Ireland and other west European countries. Multi-lingual instructions are available too, to help you with the operations of the device. The touch sensitive, 4.3” colour transflective LCD wide screen, makes viewing and operating the device very easy. The screen resolution offered is 480 x 272 pixels.

Display wise, the Mio C520T navigator, definitely seems to have made a big leap ahead. However, certain external controls like volume and mute buttons that were present in the predecessor models, have not been included here. But on the whole, the light, handy and accurate, Mio C520T Global Positioning System, might really excite the adventure spirits in you and surely make you want to “Explore More”.

Source:http://www.satellitenavigation.org.uk