Update on the home-built z80 computer:
I got the ram and eeprom chips finally, now I have all of
the ICs that I need, just need to collect the resistors,
capacitors, and a diode or two that I need to get started.

I also tried ctape today, to write a file to tape on a
modern system. Unfortunately, my laptop has a combo mic and
speaker 3.5mm jack, so I need to get a splitter to hook it
up to the casette recorder. Another thing for the list.