$answer the pop Q$$ inter$-$process communication$$ Sockets

send$(),$rec$()==$ pass message buffers

Socket$()==$ create kernel level socket buffer

Also requires associate necessary kernel level processing e$.$g$.,$ TCP$/$IP$....$

Recall$/$note$,$ sockets don't have to be used for processes that are on a single machine $($Why$)....$pop$\_$Q