what is pin for keyboard
PS/2 keyboard or PS/2 mouse redirects here. For the physical keyboards normally supplied with IBM PS/2 computers (among other hardware), see Model M keyboard. The PS/2 port is a 6-pin mini-DIN connector used for connecting some keyboards and mice to a PC compatible computer system. Its name comes from the IBM Personal System/2 series of personal computers, with which it was introduced in 1987.