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.

We may receive a commission on purchases made from links. For many people, multi-monitor setups can be a godsend for productivity, especially for users who struggle with standard-sized laptop screens ...

The new MacBook Air with M3 processor supports two external monitors — when the lid is closed. Here's what to expect when using Clamshell mode. Apple's Clamshell mode has existed for a very long time.

David Nield is a technology journalist from Manchester in the U.K. who has been writing about gadgets and apps for more than 20 years. He has a bachelor's degree in English Literature from Durham ...