Computer word
What Is the Caps Lock Key?
The Caps Lock key makes every letter you type a capital letter. It stays on after you let go of it, until you press it once more. A password is usually refused when it is typed in capitals by mistake, so Caps Lock being on is a common reason a correct password is refused.
What it looks like
It is at the left end of the third row from the bottom, above the left Shift key. Many keyboards have a small light on the key, or above the keyboard, that is lit while Caps Lock is on.
On Windows and on a Mac
On a Mac keyboard it is marked caps lock or ⇪, an arrow pointing up above a short line, and its small light is green when it is on. On a Windows keyboard it is marked Caps Lock.