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From: info-mac@uw-beaver (info-mac)
Newsgroups: fa.info-mac
Subject: Re: Mac Turbo Touch / Speed Key vs. Mice
Message-ID: <2359@uw-beaver>
Date: Thu, 29-Nov-84 18:16:13 EST
Article-I.D.: uw-beave.2359
Posted: Thu Nov 29 18:16:13 1984
Date-Received: Fri, 30-Nov-84 07:56:00 EST
Sender: daemon@uw-beave
Organization: U of Washington Computer Science
Lines: 13

From: Christopher A Kent 
I hadn't seen this ad till today, and it is indeed intriguing.
Particularly the claim of "reduc[ing] the time it takes to edit a
document by 40%". I'd be very curious to know how this was measured.
I've always found it more difficult to position trackballs, and
certainly it's harder to move along a single axis.

Unfortunately, Card, Moran and Newell didn't ever publish measurements
of trackballs when they were comparing input devices. I wonder if they
did any work with them, or just considered them inferior...

chris
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