I think you mean the tilde? If you mean this one: ~
The keys with the numbers 0-9 written on them !
Keys - as in a board of keys = keyboard
they are known as the function keys.
Keyboard shortcut
There are two enter keys on a standard keyboard and just one on a lap top, tablet etc.
The keys on a piano keyboard come in different sizes, with the white keys being longer and wider than the black keys. The white keys are called naturals and the black keys are called accidentals.
Keystroke.
They are called the 'arrow keys'.
These keys are often referred to as the home row on the keyboard.
It's called the qwerty (after the letter arrangement at the start of the top row of the alphabet keys, under the numerical keys).
The keyboard or the manual.
ENHANCED