Spyke

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ELI5: In computer networking, what is a port?

Imagine a computer is like a building that can provide goods and services such as coffee shop, travel agency, bookshop, movie rental, etc. and has a street address, that would be the network address. That address would take you to the building door, but you still need to know on what floor is the service you're looking for. That would be the port number.