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Article #28892keyboards
From: Henry Spencer
Date: Mon, 13 Jun 1988 19:58
Date: Mon, 13 Jun 1988 19:58
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2061 bytes
Several pieces of private mail have challenged my assertion that the
qwerty (Sholes) keyboard was not designed to slow down the typist.
Herewith some excerpts from a 24 Feb 1982 contribution to the Editor-
People mailing list by Donald Norman -- a name that should be familiar
to anyone who knows anything about computer-human-interaction work:
"The Sholes keyboard (aka "qwerty") was designed for a
typewriter so as to minimize the jamming of typebars as
they moved to the platen. This caused the placement of
frequent pairs as far from one another as possible. In
fact, this SPEEDS typing because typing on alternate hands
is faster than on the same hand (list of references and
reprints of papers available on demand: see, for example,
Rumelhart & Norman in the next Cognitive Science). This
point wasn't appreciated at the time because nobody thought
of using all ten fingers, and typing without looking at the
keyboard was unheard of...
"There have been hundreds of studies comparing Dvorak
arrangements with Sholes arrangements. Dvorak fans claim
massive improvements in speed... However, experiments done
by neutral parties tend to put the improvement around the
5 to 10% range -- not worth the effort... you can get a far
greater improvement in typing speed by moving the RETURN key,
either to where it can be reached without distorting the hand
(say by the left thumb...) or by having automatic RETURNs...
"If you want to improve typing speed, don't tinker with the
current key layout, but do dramatic re-arrangements [e.g. chord
keyboards]."
--
"For perfect safety... sit on a fence| Henry Spencer @ U of Toronto Zoology
and watch the birds." --Wilbur Wright| {ihnp4,decvax,uunet!mnetor}!utzoo!henry
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Newsgroups: comp.sys.mac,comp.editors Path: arc1-ca.pugleaf.net!utzoo!henry From: henry@utzoo.uucp (Henry Spencer) Subject: keyboards Message-ID: <1988Jun13.195851.1729@utzoo.uucp> Organization: U of Toronto Zoology References: <5024@batcomputer.tn.cornell.edu> Date: Mon, 13 Jun 88 19:58:51 GMT