Add Yahoo as a preferred source to see more of our stories on Google. If you see a pop-up the first time you do it, select Continue. Each time you press these keys at the same time, the screen rotates ...

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 ...