Say what you will about suitcase computers, but at least most of them still have their keyboards with them. [danjovic] has this vintage Brazilian computer from the 1980s called a Gradiente Expert.

For instance, a decent PS/2 to USB adapter will cost you as much as the Zero did, if not more. But if you just need to drive your Pi Zero from your old Model M (we hear you!) you’ve got to do it ...

As Microsoft's Raymond Chen recently explained, PS/2 and USB are ... mouse (or keyboard, or whatever other device you were trying to use) that did all the work. Chen likened the adapter to those ...

Microsoft's solution for a USB mouse that might need to connect to a PS/2 port was to include an adapter in the box ... a simpler time when mixing up the keyboard and mouse cables or bending ...