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From: gdavis@primate.wisc.edu (Gary Davis)
Newsgroups: comp.sys.mac.misc
Subject: Re: a plea to Apple -- something for the offhand
Message-ID: <2787@uakari.primate.wisc.edu>
Date: 20 Jul 90 05:11:43 GMT
References: <1412@gazette.bcm.tmc.edu>
Sender: news@primate.wisc.edu
Reply-To: gdavis@primate.wisc.edu
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From article <1412@gazette.bcm.tmc.edu>, by jgsmith@watson.bcm.tmc.edu (James G. Smith):
> 
> This is a plea for someone to come up with an input device for the off hand/
> non mouse-using hand.  I would suggest a dial or pair of dials.  The immediate

I think the inventor of the mouse, Doug Engelbart, did have an input device
for the other hand. As I recall it was a simple five-fingered keyboard.
I'm not sure what the keys did.

He used the mouse and this keyboard to control some kind of hypertext
like system he developed at SRI in the 60's. Apparently he could do
amazing things with it, but everyone else found it difficult or impossible
to learn how to use.

As others have pointed out here, the Mac also provides something for the
non-mouse hand to do, namely play with the modifier keys. 

Gary Davis