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.

Description: Editor (Option 09); Frequency Domain Editing Real-Time Waveform Sequencer Creates Automatic Test Sequences or Extremely Long Patterns Almost Infinitely Formula Entry of Waveforms Fully ...

RS-232 is the most known serial port used in transmitting the data in communication and interface. Even though a serial port is harder to program than the parallel port, this is the most effective ...