And if you were to go back a few more years into the past, you’d have found when you bought a mouse with a PS/2 connector fitted, it may well have come with an adapter for a 9-pin RS232 serial port.
The complete system consists of an SPC58XXMB/SPC57XXMB motherboard and an SPC58NHADPT386S daughter card which plugs into the motherboard. Different daughter cards are available for evaluating the ...