Windows Standard QWERTY Keyboard Explained

"The name "QWERTY" for our computer keyboard comes from the first six letters in the top alphabet row (the one just below the numbers). It is also referred to as the "Universal" keyboard.
It was the work of inventor C. L. Sholes, who put together the prototypes of the first commercial typewriter in a Milwaukee machine shop back in the 1860's."

The following website is the best I have seen to explain all the keys on a standard keyboard.

http://www.seoconsultants.com/windows/keyboard/