who invented the order of letters on a keyboard
QWERTY The QWERTY layout was devised and created in the early 1870s by Christopher Latham Sholes, a newspaper editor and printer who lived in Milwaukee, Wisconsin. In October 1867, Sholes filed a patent application for his early writing machine he developed with the assistance of his friends Carlos Glidden and Samuel W. SoulÃ©.[1]
Fleming's right-hand rule These mnemonics are named after British engineer John Ambrose Fleming, who invented them.