Our expert walkthrough helps you master this handy UI tool. I've been testing PC and mobile software for more than 20 years, focusing on photo and video editing, operating systems, and web browsers.

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 Publishing via ...

Finding a cheap secondary PC monitor is pretty easy. But if you want one that looks good, is built well, and is easily customizable, you won’t find those qualities in a budget screen from a no-name ...