QWERTY
QWERTY is the most common modern-day keyboard layout on most English
language computer and typewriter keyboards. It takes its name from the
first six letters seen in the keyboard's top row of letters. The QWERTY
design was patented by Christopher Sholes in 1868 and sold to Remington
in 1873, when it first appeared in typewriters.
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Frequently used pairs of letters were separated in an attempt to stop
the typebars from intertwining and becoming stuck, thus forcing the
typist to manually unstick the typebars and also frequently blotting the
document. The home row (ASDFGHJKL) of the QWERTY layout is thought to be
a remnant of the old alphabetical layout that QWERTY replaced. QWERTY
also attempted to alternate keys between hands, allowing one hand to
move into position while the other hand strikes home a key. This sped up
both the original double-handed hunt-and-peck technique and the later
touch typing technique; however, single-handed words such as
stewardesses and monopoly show flaws in the alternation.
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It has often been noted that the word typewriter can be typed entirely
using the top row of the QWERTY keyboard: it has been speculated that
this may have been a factor in the choice of keys for ease of
demonstration, although it is unlikely that engineers would create the
key setup around a sales gimmick.
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