This free and open-source app lets you use any device as an extended PC monitor for macOS, Windows, or Linux. Here's how to ...

Apple likes to promote the idea that an iPad can replace a laptop or desktop computer — we all remember the infamous “What’s a computer?” TV ad. One of the ways this is supported is connecting to an ...

Sometimes you just need a quick and easy way to connect a second monitor, without dealing with a whole new display. Apple's Sidecar feature lets you turn your iPad into a second display for the Mac, ...