Re: Earlier 1980 optical mice circuit

From: silverdr_at_wfmh.org.pl
Date: Mon, 20 Nov 2017 08:31:02 +0100
Message-Id: <C0286937-0013-4F4B-A79F-5EAA295E5AD9@wfmh.org.pl>
> On 2017-11-20, at 00:50, 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.

You could get /some/ movement without them. Definitely not usable though.

> 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 :)

I think I still have one. Somewhere. It was holding my 1351 on the right-hand side of the desk ;-)

-- 
SD! - http://e4aws.silverdr.com/


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