1st stage loader for IMSAI - need ascii to binary conversion

[Alexandre Souza]

> This paper tape fiddling made me wonder if anyone ever made a cassette
> tape interface that emitted RS232 signals and looked to the computer like
> a paper tape reader/writer.

    Hmmm....You are a bad guy, David! Now I'll have to think about it :o)

    Easy path: two tone detectors, going to a microcontroller who store the 
data read from the tape and send it in RS232 way. A very simple AVR 
microcontroller can do that ;o)