Story

Anybody remember computers in the late 90's?

2 9-pin RS-232 serial ports (older mice, modems, etc)
2 PS/2 ports (keyboard/mouse)
1 25-pin IEEE 1284 Parallel port (printers, storage devices, even ethernet adapters)
Often a SCSI-1 port (scanners, external drives)
Game ports (controllers)
Sometimes even MIDI ports
Often firewire ports.
etc.

And then a couple USB (v1.1) ports, which was the most useless of all... Nothing made for it, except maybe your new mouse using an adapter. Slower than parallel ports, lots of CPU-saping overhead. Couldn't boot off of it (for many years). etc.