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 ...

Two monitors are better than one, and with macOS Catalina, you can turn your iPad into a second display with just a few clicks thanks to a feature known as Sidecar. But Sidecar is limited to certain ...

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, ...