The US standard 101 keyboard, known as QWERTY
Qwerty was designed and patented in 1896 by Christopher Latham Sholes, the inventor of typewriter.
Originally keys were laid out in alphabetical order which caused frequent jams of moving parts. Sholes rearranged the keys so that most frequently typed letters were spread apart to minimize the jamming. He obtained a patent for this keyboard layout which became known as QWERTY and became US standard 101 keyboard.
With the invention of electrical typewriter in 1930's which used a ball to type letters rather then moving arms, an opportunity arose to redesign keyboard layout to improve typing efficiency. From numerous keyboard layouts proposed and tested, Dvorak keyboard became the alternate American standard.
friend's opinion on Qwerty:
During one visit of Dallas's sister we started to talk about typing and what does she think about Qwerty typing. She types over 50 wpm and she let us have it *bad words*and concluded it (Qwerty) is *bad word* but that's the way she was taught how to type. Her friend said that he can't be typing any faster than his brain is going anyway, so Qwerty was OK with him. She gave him deadly look and pointed at her little boy saying that the new generation does not have to learn that *bad word* way to type.