What machine was QWERTY keyboard layout created for? Why was QWERTY keyboard layout created for #1? Will typing slow solve the problem of #2?
Keyboard layout
The QWERTY keyboard layout was made for use on typewriters. Typewriters could not be used too quickly, or they would jam. 
any specific mechanical, visual, or functional arrangement of the keys of a keyboard or typewriter
Is the QWERTY keyboard layout meant to be slow?