Using a monitor to extend your laptop's display, or to give you a bigger screen for work or play can be super useful. Here's how to do it.

Let's say you want a second screen for your Mac to extend or mirror your current display. If you're running macOS Catalina or higher and own an iPad, you can do it through a feature called Sidecar.

Xbox One received a new app today that lets you project your phone, PC, or tablet screen onto your TV.

Duet Display lets you use any Android device as a second screen for your Mac, whether wired or wireless, giving you extra space for multitasking.

In my case, I can then right-click on one of my monitors and select whether I want to clone the display (what appears on the primary appears on the other) or extend the display—the setup you ...

Here’s how to split your screen on either a Mac or Windows computer, a great tool for multitasking. Splitting your screen is a great tool for multitasking. (Photo by Phil Barker/Future ...

The folks behind Duet Display have released a Windows client, allowing you to extend your machine to any iOS device.