How many pins are available on a PS/2 Mini-DIN connector?

A.
5

B.
4

C.
6

D.
3

Explanation:

A PS/2 Mini-DIN connector has 6-pins , while only four are used. Pin 1 is used for keyboard data
signal, pin 3 is ground, pin 4 has +5 Volt DC, pin 5 is used for keyboard clock, and pins 2 and 6 are not
used. The PS/2 6-pin Mini-DIN connector is used for both keyboard and mouse. Older keyboard
connectors use 5-pin DIN connector.