Caps Lock - Wikipedia
https://en.wikipedia.org/wiki/Caps_Lock
Caps Lock ⇪ Caps Lock is a button on a computer keyboard that causes all letters of bicameral scripts to be generated in capital letters. It is a toggle key: each press reverses the previous action.
The Caps Lock key: What does it do and how do you disable... - IONOS
https://www.ionos.com/digitalguide/websites/web-development/caps-lock/
When activated, the Caps Lock key capitalizes every letter you type until you turn it off. Nowadays, hardly anyone uses this option anymore.
What is Caps Lock?
https://www.computerhope.com/jargon/c/capslock.htm
Sometimes abbreviated as CAPS and CAPSLK, Caps Lock is a toggle key on a computer keyboard, that when pressed, causes all letters typed to be in uppercase.
Caps lock - Deskthority wiki
https://deskthority.net/wiki/Caps_lock
Caps lock is a lock key found on most keyboards. Its purpose is to allow easy entry of capitalised letters; even in countries such as Japan where letter case does not exist, it is present for when the keyboard is used for text entry in European languages, primarily English.