What is port and port number ?



What is port and port number ?

  • One of the circuit connection point on a front end processor or local intelligence control is called port.
  • In computer networks, the term port can refer either physical or virtual connection point.

Characteristics of Ports

A port has the following characteristics −

  • External devices are connected to a computer using cables and ports.
  • Ports are slots on the motherboard into which a cable of external device is plugged in.
  • Examples of external devices attached via ports are the mouse, keyboard, monitor, microphone, speakers, etc.
What is port

What is port

Port Number

  • A port number is the logical address of each application or process that uses a network or the Internet to communicate.
  • A port number uniquely identifies a network-based application on a computer.
  • Each application/program is allocated a 16-bit integer port number.
  • This number is assigned automatically by the OS, manually by the user or is set as a default for some popular applications.
 What is port number

Port Number


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