On Fri, 29 Nov 2019, Anders Nelson via cctalk wrote:
Also what appears to be a quad serial board:
https://photos.app.goo.gl/21EvJcc7KwwDuS4t9
It appears to have 384K of RAM, a battery backed clock/calendar, a serial
port and a parallel port....so "quad" function. :)
Oh, looks to have a game port on it too. Maybe made by Quadram?
g.
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