A USB port is both and input and output port. Depends on what is connected to it as to which is functions as. Connect a camera and it is an input device. Connect a printer and it is an output device. Connect a printer/scanner and it is both.
A USB port is both an input and an output.
output
input
output
output
output cause the parallel port is outside the computer
stdio.h
Input port
Input, output, PROCESS, and Storage
Input and Output.
the functions of the output and input is nothing The answer to that is that computers have an out and an in to stick the memory in well whoever wrote this is dumb cuz that's not right