After decades of working with computers, I started to develop some wrist and arm pain a few year ago. So I switched from using whatever random mouse I could find for under $20 to using input devices ...

You can use two Windows machines at once with a single keyboard and mouse without any special hardware. I had an extra laptop lying around that now connects with the same keyboard and mouse as my PC.

For a lot of us, day-to-day computing involves using more than one computer—and sometimes more than one computer operating system too. That can mean a lot of wires and a lot of swapping between ...