Nearly every barcode scanner I've run across is effectively a keyboard. I'd give it a try with one of the commonly available ones; worst case you can always return it.

In recent years, many PC peripherals have adopted USB or Bluetooth to connect to PCs, but until USB became mainstream in the mid-2000s, connections via PS/2 connectors were common. Raymond Chen, a ...

I've got a USB mouse (MS) that came with a USB to PS/2 converter. It works fine hooked up to a PS/2 port. I run it through a KVM switch that is PS/2 and not USB so this is necessary. One of the boxen ...

[svofski] has a friend who is a pixel artist. They really wanted to try out their skills on a c64, but were missing a mouse. The original mouse for the c64 was not only serial, but used a different ...