Keyboard weird thing

Why do i get WERTYUIASDGJLCVN if i type the alphabet while holding both shift keys down? Why is it always different on different PCs?
Answer #1
numlock, no?
Answer #2
ADEFGHIJKLOPESTUWY is what I get when typing the alphabet with both shift keys pressed.
Basicly it’s just a limitation you can’t do anything about. Pressing both shift keys blocks about 10/26 keys. Why would you even want both Shift keys pressed anyway?