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  2. Transmission medium - Wikipedia

    en.wikipedia.org/wiki/Transmission_medium

    There are two main types of transmission media: guided media—waves are guided along a solid medium such as a transmission line; unguided media—transmission and reception are achieved by means of an antenna. One of the most common physical media used in networking is copper wire. Copper wire to carry signals to long distances using ...

  3. Data communication - Wikipedia

    en.wikipedia.org/wiki/Data_communication

    Data transmission, digital transmission or digital communications is the transfer of data over a point-to-point or point-to-multipoint communication channel. Examples of such channels include copper wires, optical fibers, wireless communication channels, storage media and computer buses.

  4. Computer network - Wikipedia

    en.wikipedia.org/wiki/Computer_network

    The transmission media (often referred to in the literature as the physical medium) used to link devices to form a computer network include electrical cable, optical fiber, and free space. In the OSI model, the software to handle the media is defined at layers 1 and 2 — the physical layer and the data link layer.

  5. Signal transmission - Wikipedia

    en.wikipedia.org/wiki/Signal_transmission

    In telecommunications, transmission (sometimes abbreviated as "TX") is the process of sending or propagating an analog or digital signal via a medium that is wired, wireless, or fiber-optic. [ 1 ] [ 2 ]

  6. Communication channel - Wikipedia

    en.wikipedia.org/wiki/Communication_channel

    Different types of physical transmission media supporting communication channels. A communication channel refers either to a physical transmission medium such as a wire, or to a logical connection over a multiplexed medium such as a radio channel in telecommunications and computer networking.

  7. Network topology - Wikipedia

    en.wikipedia.org/wiki/Network_topology

    A network interface controller (NIC) is computer hardware that provides a computer with the ability to access the transmission media, and has the ability to process low-level network information. For example, the NIC may have a connector for accepting a cable, or an aerial for wireless transmission and reception, and the associated circuitry.

  8. Channel access method - Wikipedia

    en.wikipedia.org/wiki/Channel_access_method

    In telecommunications and computer networks, a channel access method or multiple access method allows more than two terminals connected to the same transmission medium to transmit over it and to share its capacity. [1] Examples of shared physical media are wireless networks, bus networks, ring networks and point-to-point links operating in half ...

  9. OSI model - Wikipedia

    en.wikipedia.org/wiki/OSI_model

    Reliable transmission of data segments between points on a network, including segmentation, acknowledgement and multiplexing: Media layers 3 Network: Packet: Structuring and managing a multi-node network, including addressing, routing and traffic control: 2 Data link: Frame: Transmission of data frames between two nodes connected by a physical ...