<Li> Jump up ^ Sometimes, keyboard Data for splitter cable . </Li> <Li> Jump up ^ Sometimes, keyboard Clock for splitter cable . </Li> <P> The PS / 2 port is a 6 - pin mini-DIN connector used for connecting 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 . The PS / 2 mouse connector generally replaced the older DE-9 RS - 232 "serial mouse" connector, while the PS / 2 keyboard connector replaced the larger 5 - pin / 180 ° DIN connector used in the IBM PC / AT design . The PS / 2 designs on keyboard and mouse interfaces are electrically similar and employ the same communication protocol . However, unlike the otherwise similar Apple Desktop Bus connector used by Apple, a given system's keyboard and mouse port may not be interchangeable since the two devices use a different set of commands . </P> <P> Communication is serial, synchronous and bidirectional . The attached device generates the clock signal . The host controls communication using the clock line; when the host pulls the clock low, communication from the device is inhibited . </P>

Where do you plug in a keyboard or mouse on a pc