Re: Earlier 1980 optical mice circuit

From: Terry Raymond <traymond20_at_gmail.com>
Date: Sun, 19 Nov 2017 18:29:24 -0700
Message-ID: <CAEFCF-qN7M8NeJKVtbkOSdeEcB5SH9eju27r4ee=a1OY2jFOhQ@mail.gmail.com>
This is kind of off topic but when I had an Apple IIC I found a mouse that
used the
special mousepad I can't remember the model, I bought it in the US
somewhere out of Florida.
I think it would be easier with the DB9 serial mice, but they are scarce. 😞
Terry Raymond


On Nov 19, 2017 4:51 PM, "Mia Magnusson" <mia@plea.se> wrote:

Den Sun, 19 Nov 2017 19:04:51 +0100 skrev silverdr@wfmh.org.pl:
>
> > On 2017-11-19, at 18:55, smf <smf@null.net> wrote:
> >
> > Optical mice shine an led on the surface and then watch the surface
> > move. They weren't available in 1980
>
> In 1980 no. In 1980ies yes. The main difference in regards to current
> mice was that they came with special mousepad, required for them to
> operate reliably.

Even required for them to operate at all.

B.t.w., while we are discussing low volume demand for mice in the
early 80's:

Do you remember those "mouse holders" that were sold to PC users who
only occasionally used their mice for some specific applications?

I assume most of those has been thrown away in the 90's. Would somehow
be kind of nice to have with a C64 mice or similar :)



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Received on 2017-11-20 02:00:02

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