The 5-pin DIN keyboard connector used with the first IBM PC (1981) and second-generation IBM AT (1984). It was subsequently replaced with the smaller 6-pin Mini-DIN connector on the IBM PS/2 in 1987.

Some three-pin connectors fit five-pin sockets; however, not all five-pin connectors fit three-pin sockets. Small or mini-DIN connectors use between three and nine pins and are available in seven ...

A hardware interface used to connect a mouse or keyboard to a computer via a 6-pin Mini-DIN plug and socket. Introduced on IBM's PS/2 desktop PC in 1987, the port was later used by all non-IBM PCs ...