Why are there num lock, caps lock and scroll lock lights on keyboards?

Question

Almost everything else is indicated on the screen. Why aren’t these indicators shown on the taskbar or menu bar instead?

In: 0

Answer 1

Well when you get kidnapped by the bad guys and they give you a laptop to decode some password for them how are you gonna program a secret email program that only communicates to the user by blinking the caps lock key in Morse code so they can’t use screen mirroring and/or van Eck phreaking to keep an eye on what you’re doing so you can call for help and escape and then find that lost cache of Japanese war gold?