A CPU, or central processing unit, is a vital part of your computer or phone, and is responsible for executing every command you or an app makes.

For something as simple as setting a timer, the built-in apps on our computers can be awfully fiddly. Usually you have to open a Clock app first, then navigate to a separate tab for timers. After that ...

Some people can’t be bothered to read the analog face of a traditional clock. Some people cannot stand the low frequency “hum” of mains current. If you are in either of those categories, you probably ...