3 button parallel mouse.

Here's something that may interest to a few members http://www.trademe.co.nz/computers/vint ... 442284.htm
Connecting New Zealand's vintage and classic computer enthusiasts
https://classic-computers.org.nz/forums/
https://classic-computers.org.nz/forums/viewtopic.php?f=10&t=1043
caluser2000 wrote:The pin arrangement does match up to a parallel port.
caluser2000 wrote:Like a dedicated non stop powerpoint or similar display setup?