Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10 UW 5/3/83; site uw-beaver Path: utzoo!watmath!clyde!cbosgd!ihnp4!houxm!vax135!cornell!uw-beaver!info-mac 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 KentI 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 ----------