Port, Port …Socket!!!

When listening to  Computer Networks class today I got the following interesting doubts which I got clarified by my professor

Doubts:-

Q) what is doubt:- when every browser is allocated a port number 80 then how can multiple tabs of chrome or any browser can talk through that when only when process can be listened through one port ?
Ans:– servers listen through port-80 for browsers but not on client side..on client side your  OS uses port numbers >5000 so every new tab(as for google it is a process..read the below) uses a unique port number —i.e one process one port

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