In message <199704301643.LAA25987(a)zen.mathcs.rhodes.edu>you write:
That mouse sounds familiar. I seem to remember a mouse like that
which was used with the AT&T 5620 terminal.
It sounds familiar to me also, as I have one for my Whitechapel
workstation, although it isn't red but is just beige. I have heard them
referred to as "Swiss Mice" - don't know why.
I knew the name sounded familiar, now I know why. It's in the Whitechapel
Milliard Gargantubrain (that's what the MG in MG1 stands for, apparently)
technical manual.
If it's the same mouse, it's a pretty dumb unit, and outputs the 4
quadrature signals (2 for X, 2 for Y) on separate pins. It's a bit like an
atari ST/amiga/PC bus mouse. Of course there may have been versions with
built-in electronics to make them PC serial mice...
Kevan
--
-tony
ard12(a)eng.cam.ac.uk
The gates in my computer are AND,OR and NOT, not Bill