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.
Laptops are the new normal in today's working world. PCs, especially desktops, are kept for high-powered machines or other reasons that may need to stay. Most of today's workers, especially remote ...
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 ...