The Internet Is a global system of interconnected computer networks that use the standard Internet protocol suite (TCP/IP) to link several billion devices worldwide. It Is a network of networks that consists of millions of private, public, academic, business, and government networks, of local to global scope, that are linked by a broad array of electronic, wireless, and optical networking technologies.
The Internet carries an extensive range of information resources and services, such as the inter- linked hypertext documents and applications of the World Wide Web (WWW), he infrastructure to support email, and peer-to-peer networks for file sharing and telephony. The of the Internet date back to research commissioned by the united States government In the 1 9605 to build robust, fault- tolerant communication via computer networks. While this work, together with work in the united Kingdom and France, led to important precursor networks, they were not the Internet.
There is no consensus on the exact date when the modern Internet came into being, but sometime in the early to mid- is considered reasonable. From that point, the network experienced decades of sustained exponential growth s generations of Institutional, personal, and were connected to It. The funding of a new U. S. Backbone by the National Science Foundation In the , as well as private funding for other commercial backbones, led to worldwide participation In the development of new networking technologies, and the merger of many networks.
Though the Internet has been widely used by since the , the centralization of what was by the 1990 San international network resulted in Its popularization and incorporation Into virtually every aspect of modern human life. As of June 2012, more than 2. Billion ?over a third of the world's human population?have used the services of the Internet; approximately 100 times more people than were using it in Internet use grew rapidly in the West from the mid-1 to early 2000 sand from the late 1 to present in the developing world.
In 1994 only 3% of American classrooms had access to the Internet while by 2002 92% did.  Most traditional communications media including telephone, music, film, and television are being reshaped or redefined by the Internet, birth to new services such as voice over Internet Protocol (Poi) ND Internet Protocol television (PIPIT). Newspaper, book, and other print publishing are adapting to website technology, or are reshaped into blobbing and web feeds.
The Internet has enabled and accelerated new forms of human interactions through instant messaging, Internet forums, and social networking. Online shopping has boomed both for major retail outlets and small artisans and traders. Business-to- financial services on the Internet affect supply chains across entire Industries. The Internet has no centralized governance In either technological implementation or policies for access and usage; each constituent network sets its own policies.
Only the overreaching definitions of the two principal name spaces in the Internet, the Internet Protocol address space and the Domain Name System, are directed by a maintained organization, the Internet Corporation for Assigned Names and Numbers (CAN). The technical underpinning Engineering Task Force (IETF), a non-profit organization of loosely affiliated international participants that anyone may associate with by contributing technical expertise. A video game is an electronic game that involves human interaction with user interface to generate visual feedback on a video device.
The word video in video game traditionally referred to a raster display but it now implies any type of display device that can produce two- or three-dimensional images. The electronic systems used to play video games are known as platforms; examples of these are personal computers and video game consoles. These platforms range from large mainframe computers to small handheld devices. Specialized video games such as arcade games, while previously common, have gradually declined in use. Video games have gone on to become an art form and industry.
The input device primarily used to manipulate video games is called a game controller, and varies across platforms. For example, a controller might consist of only a button and a Joystick, while another may feature a dozen buttons and one or more joysticks. Early personal computer games often needed a keyboard for , or more commonly, required the user to buy a separate Joystick with at least one button. Many modern computer games allow or require the player to use a keyboard and mouse simultaneously. A few of the most common game controllers are , mouse, keyboards, and Joysticks.
In recent years, additional methods of input have emerged such as camera-based player observation for video game consoles and touch-sensitive screens on mobile devices. Video games typically use additional means of providing interactivity and information to the player. Audio is almost universal, using sound reproduction devices, such as speakers and headphones. Other feedback may come via peripherals, such as vibration or force feedback, with vibration sometimes used to simulate force feedback. In the early days of cartridge consoles, they were sometimes called TV games.