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  2. Modem - Wikipedia

    en.wikipedia.org/wiki/Modem

    A modulator-demodulator or most commonly referred to as modem is a computer hardware device that converts data from a digital format into a format suitable for an analog transmission medium such as telephone or radio. A modem transmits data by modulating one or more carrier wave signals to encode digital information, while the receiver ...

  3. Router (computing) - Wikipedia

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

    Router (computing) Rack containing a service-provider–class router connected to multiple networks. 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.

  4. Wi-Fi - Wikipedia

    en.wikipedia.org/wiki/Wi-Fi

    Wi-Fi is a technology that enables personal computers, smartphones, gaming consoles, and digital audio devices to connect to the internet wirelessly within a network area. Wi-Fi access points can cover small areas like a room or extend to several square miles, providing internet access.

  5. Cable modem - Wikipedia

    en.wikipedia.org/wiki/Cable_modem

    A cable modem is a type of network bridge that provides bi-directional data communication via radio frequency channels on a hybrid fibre-coaxial (HFC), radio frequency over glass (RFoG) and coaxial cable infrastructure. Cable modems are primarily used to deliver broadband Internet access in the form of cable Internet, taking advantage of the ...

  6. Bit rate - Wikipedia

    en.wikipedia.org/wiki/Bit_rate

    As an example, the goodput or data transfer rate of a V.92 voiceband modem is affected by the modem physical layer and data link layer protocols. It is sometimes higher than the physical layer data rate due to V.44 data compression , and sometimes lower due to bit-errors and automatic repeat request retransmissions.

  7. DSL modem - Wikipedia

    en.wikipedia.org/wiki/DSL_modem

    DSL modem. A digital subscriber line (DSL) modem is a device used to connect a computer or router to a telephone line which provides the digital subscriber line (DSL) service for connection to the Internet, which is often called DSL broadband. The modem connects to a single computer or router, through an Ethernet port, USB port, or is installed ...

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