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]
British and American keyboards There are two major English language computer keyboard layouts, the United States layout and the United Kingdom layout defined in BS 4822[1] (48-key version). Both are QWERTY layouts. Users in the United States do not frequently need to make use of the £ (pound) and € (euro) currency symbols, which are common needs in the United Kingdom and Ireland, although the $ (dollar sign) symbol is also provided as standard on UK and Irish keyboards. In New Zealand the US keyboard layout is the de facto standard. In Australia, Canada, the Netherlands, Pakistan, Poland and India, the US keyboard might also be used.