What is cable? Its types, working, advantages, disadvantages & Applications

Cable is a bundle of wires or cords used for transmitting power, data, and signals from one place to another. These are used in various applications, including electricity transmission, telecommunications, networking, and audio/video transmission.

Types of Cables:

  1. Coaxial Cable: A type of cable with a single copper conductor at the center, surrounded by a layer of insulation and a braided shield.
  2. Twisted Pair Cable: A type of cable with two or more copper wires twisted together.
  3. Fiber Optic Cable: A type of cable that uses light to transmit data through thin strands of glass or plastic.
  4. Ethernet Cable: A type of twisted pair cable used for computer networking.

Working of Cables:

The working of cables depends on the type of cable. However, in general, cables work by transmitting data, signals, or power from one device to another through the use of wires, insulation, and shielding. The signal or power is transmitted through the wires in the cable, which are then transmitted to the receiving device.


  1. Cables can transmit data or power over long distances without significant loss.
  2. These are secure and immune to interference from external sources.
  3. Cables are easy to install and maintain.
  4. It have a longer lifespan than wireless systems.


  1. Cables are more expensive than wireless systems.
  2. It can be difficult to install in existing buildings or structures.
  3. It can be damaged or broken, which can cause interruptions in the transmission of data or power.
  4. Cables can become tangled or messy, which can cause problems with organization and management.


  1. Power Transmission: Cables are used to transmit electricity from power stations to homes and businesses.
  2. Telecommunications: Cables are used for phone lines, internet connections, and cable television.
  3. Networking: Cables are used to connect computers and other devices in a local area network (LAN).
  4. Audio/Video Transmission: it can be used to connect audio and video equipment such as speakers, televisions, and DVD players.

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