Two units of a computer are 1) hardware and software2) input and output device3) primary and secondary storage4) control unit and arithmetic unit

Two units of a computer are 1) hardware and software2) input and out

1.	Two units of a computer are 1) hardware and software2) input and output device3) primary and secondary storage4) control unit and arithmetic unit
Answer» I THINK so it is input and OUTPUT device PLZZ follow me and make me brainliast