I laughed
2004-03-02 by grantrichter2001
http://web.inter.nl.net/hcc/davies/mvzx81.html Although there is no technical reason you can't interface a ZX-81 text keyboard to a PSIM-1 with a matrix scanning routine.
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2004-03-02 by grantrichter2001
http://web.inter.nl.net/hcc/davies/mvzx81.html Although there is no technical reason you can't interface a ZX-81 text keyboard to a PSIM-1 with a matrix scanning routine.