Mechanical mice have a ball and two spinners with electrical contacts that pass by counters. These fell out of favour very early because the contacts bend. Optomechnical mice have a ball and two spinners with slots, on one side is an led and the other side a receiver. Amiga,Atari ST,IBM Bus Mice are all pretty much the same, the signals from the receivers get sent over four wires (quadature encoding). Serial,PS/2,USB,1351 mice have a chip which interprets the quadature encoding and convert them to an alternative format. You should be able to add a chip to the former, or remove the chip from the later. Optical mice shine an led on the surface and then watch the surface move. They weren't available in 1980 On 19/11/2017 17:42, Terry Raymond wrote: > Hi, > > Would the earlier 1980 optical mice be a lot less complex as today's > optical mice. > In my Googling optical mice I did find a 1980 optical that was used but > it's a chip that controls this could this somehow work with the MOS 5717 to > use the same > Joystick and proportional modes, as far as integrate the optical to the > 1351 circuit > somehow? > > Is this even possible seems the optical now is far more complex than in > 1980! > > Terry Raymond > Message was sent through the cbm-hackers mailing listReceived on 2017-11-19 18:00:02
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