Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!batcomputer!cornell!rochester!pt.cs.cmu.edu!o.gp.cs.cmu.edu!andrew.cmu.edu!mc4c+
From: mc4c+@andrew.cmu.edu (Mark Choi)
Newsgroups: comp.sys.atari.st
Subject: Re: Mice
Message-ID: <wbyZEHe00Uh7A3KbZY@andrew.cmu.edu>
Date: 3 Apr 91 22:15:47 GMT
References: <PyTJZ1w163w@cellar.UUCP>,
	<59697@aurs01.UUCP>
Organization: Carnegie Mellon, Pittsburgh, PA
Lines: 9
In-Reply-To: <59697@aurs01.UUCP>

Opto-mechanical means that a light beam passes through slits in a wheel
that spins as the mouse moves, one horizontal, and one vertical. a light
sensor on the other end senses the light pulses and converts these to
movement info for the mouse controller. There is a rubber ball with
little spikes all over it that is used to clean mice. Just place it in
the chamber, and run the mouse around for as few seconds. It is for the
mac, and I do not know if there is one with a bigger ball for the ST. A
great idea, though.
                    -geisha-