What is unique port number, Computer Engineering

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Q. What is Unique port number?

A port is an extra 16-bit number which uniquely identifies particular service on any given machine on Internet. Port numbers are 16 bit wide, consequently every computer on the Internet has a maximum number of 216 or 65,536 ports. Particular application is identified by its unique port number in same way that a specific television station has a unique channel number.


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