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- Path: sparky!uunet!usc!zaphod.mps.ohio-state.edu!rpi!utcsri!dgp.toronto.edu!ematias
- Newsgroups: comp.sys.palmtops
- From: ematias@dgp.toronto.edu (Edgar Matias)
- Subject: Re: Typing on palmtops (was Re: Microwriter Chording Patents)
- Message-ID: <1992Jul25.124631.17488@jarvis.csri.toronto.edu>
- Organization: CSRI, University of Toronto
- References: <6971@lib.tmc.edu> <41730119@hpfcbig.SDE.HP.COM>
- Date: 25 Jul 92 16:46:31 GMT
- Lines: 27
-
-
- >I can type 30-35 words per minute on the HP95LX.
- >How fast can you type on the Agenda?
- > <John Diamant asking Jonathan Allen a question>
-
- It should be noted that any answer to that question should be taken
- cautiously, since (to my knowledge) Microwriter's chording scheme has
- never been tested before (in an experimental setting that is).
- However, keyboards similar to the one on the HP95LX have been tested.
- See "Optimizing a portable terminal keyboard for combined one-handed
- and two-handed use" by Michael E. Wikland, Joseph S. Dumas, and
- Lawrence R. Hoffman published in the 1987 Proceedings of the Human
- Factors Society.
-
- They found that it is possible to type on a calculator style keyboard
- at rates as high as 37 wpm (if you use both hands). Hand writing
- speed for these typists (the fastest group) averaged 35 wpm.
-
- Generally, chord keyboards are slower than sequential (QWERTY)
- keyboards. They can be made faster if the chording scheme
- includes chords that represent whole words and frequent letter patterns
- like ER and TH. I don't think the Microwriter does this. Jonathan would
- be a better position to tell you than me. Also, this is how court
- stenographers manage to type so fast on their chord keyboards.
-
- Edgar
- DISCLAIMER: My company makes one-handed keyboard software.
-