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- From: landauer@morocco.Eng.Sun.COM (Doug Landauer)
- Newsgroups: comp.misc
- Subject: Re: Really better? (Re: DVORAK keyboard?)
- Date: 9 Jan 1993 00:52:41 GMT
- Organization: Sun
- Lines: 49
- Message-ID: <lks8epINNkko@exodus.Eng.Sun.COM>
- References: <1993Jan7.160953.3516@ncsa.uiuc.edu> <1993Jan7.182223.585@hpcvmcdj.cv.hp.com>
- NNTP-Posting-Host: morocco
-
- > : I'm really curious about the contention that the DVORAK keyboard is
- > : really faster ...
- >
- > I remember an article that concluded the advantage of dvorak keyboards
- > was greatly overstated.
-
- (The *speed* advantage, that is.)
-
- > Some studies have stated that dvorak has a 2-3
- > times advantage based on finger movement. This article mentioned that
- > they all neglected to figure the motion of the finger pressing the key,
- > which is the same in either case. I believe that they concluded that
- > dvorak had about a 15% advantage still; not enough for a touch typist to
- > change over.
-
- *IF* speed were the only factor. What I wonder is whether any studies
- have been done on Dvorak versus QWERTY keyboards with respect to Carpal
- Tunnel Syndrome. (I would guess that these are much harder/more expensive
- studies to carry out.)
-
- More open questions:
-
- --> I have read that Dvorak's layout is designed to be "better" than
- QWERTY, but is there any evidence that it's optimal? I.e., now
- that computer time is cheaper than it was in Dvorak's day :-),
- has anyone done exhaustive analysis of similar layouts to find
- one even a bit better than Dvorak's? [I've used a slightly
- modified Dvorak layout for about 5 years now.]
-
- --> Have similar wrist damage studies been done on the "altogether
- different" kinds of keyboard designs like the Dutch Velotype
- mentioned in a recent post?
-
- --> I used to have a photocopy of part of an article from an old
- (mid-70's, I think) issue of IEEE Computer. The article described a
- very interesting design of an IBM-patented Chord keyboard that had a
- total of 12 switches in it -- 10 of them had keys with dimpled keycaps
- to allow each single finger-press to activate 1, 2, or 4 switches;
- the other two allowed 3 thumb-shifts. So you could get something
- like 4000 different combinations with one hand. They claimed that
- one-handed typists on this thing could match the speed of fast
- two-handed typists on "normal" keyboards.
-
- Does anyone have the exact citation, or a copy of the article
- in question?
- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
- Doug.Landauer@sun.com | "Wow, look at the grass stains on my skin. I say, if
- SUNW[STE]->SunPro:: | your knees aren't green by the end of the day, you
- Languages.IPE(C++); | ought to seriously re-examine your life." -- Calvin
-