[net.micro] A/D on a TRS-80

steve@sri-unix (07/27/82)

The TRS-80 Color Computer has four built in A/D channels (for the joysticks)
with 6 bit resolution between 0 and 5 volts. They are not particularly
fast (you didn't say what speed you needed) - say less than 10 samples per
second (if that).

   A 32K color computer is about $700 (they just dropped the price), your
first mini-floppy is $600 and each successive one (up to 4) is $400.
(The first drive includes the disk interface.)

Here's the best part: You don't have to mess with primitive processors
like Z-80's or 6502's - the CC has a 6809 in it.

I own one and have been pretty happy with it (though the inability to
put both text and graphics on the screen at the same time is a
considerable annoyance).

	Steve Den Beste
	Tektronix