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  2. Computer network - Wikipedia

    en.wikipedia.org/wiki/Computer_network

    An internetwork is the connection of multiple different types of computer networks to form a single computer network using higher-layer network protocols and connecting them together using routers. The Internet is the largest example of internetwork. It is a global system of interconnected governmental, academic, corporate, public, and private ...

  3. Networking hardware - Wikipedia

    en.wikipedia.org/wiki/Networking_hardware

    Networking hardware, also known as network equipment or computer networking devices, are electronic devices that are required for communication and interaction between devices on a computer network. Specifically, they mediate data transmission in a computer network. [ 1] Units which are the last receiver or generate data are called hosts, end ...

  4. Wi-Fi - Wikipedia

    en.wikipedia.org/wiki/Wi-Fi

    Wi-Fi ( / ˈwaɪfaɪ /) [ 1][ a] is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves. These are the most widely used computer networks, used globally in home and ...

  5. ARPANET - Wikipedia

    en.wikipedia.org/wiki/ARPANET

    ARPANET access points in the 1970s. The Advanced Research Projects Agency Network ( ARPANET) was the first wide-area packet-switched network with distributed control and one of the first computer networks to implement the TCP/IP protocol suite. Both technologies became the technical foundation of the Internet. The ARPANET was established by the ...

  6. Router (computing) - Wikipedia

    en.wikipedia.org/wiki/Router_(computing)

    Router (computing) A router[ a] is a computer and networking device that forwards data packets between computer networks, including internetworks such as the global Internet. [ 2][ 3][ 4] A router is connected to two or more data lines from different IP networks. When a data packet comes in on a line, the router reads the network address ...

  7. Computer hardware - Wikipedia

    en.wikipedia.org/wiki/Computer_hardware

    Computer hardware. PDP-11 CPU board. Computer hardware includes the physical parts of a computer, such as the central processing unit (CPU), random access memory (RAM), motherboard, computer data storage, graphics card, sound card, and computer case. It includes external devices such as a monitor, mouse, keyboard, and speakers. [ 1][ 2]

  8. World Wide Web - Wikipedia

    en.wikipedia.org/wiki/World_Wide_Web

    The Web was invented by English computer scientist Tim Berners-Lee while at CERN in 1989 and opened to the public in 1991. It was conceived as a "universal linked information system". [3] [4] Documents and other media content are made available to the network through web servers and can be accessed by programs such as web browsers.

  9. Point-to-Point Protocol - Wikipedia

    en.wikipedia.org/wiki/Point-to-Point_Protocol

    In computer networking, Point-to-Point Protocol ( PPP) is a data link layer (layer 2) communication protocol between two routers directly without any host or any other networking in between. [ 1] It can provide loop detection, authentication, transmission encryption, [ 2] and data compression . PPP is used over many types of physical networks ...