Geek Alert: Reconstructing AppleI BASIC from a Cassette Tape

Computer, engineering, and other technical assistance.

Moderators: genlock, sportsvoice

Post Reply
User avatar
Lester
Administrator
Administrator
Posts: 2807
Joined: Fri Dec 14, 2001 5:47 pm
Contact:

Geek Alert: Reconstructing AppleI BASIC from a Cassette Tape

Post by Lester »

1200 Baud Archeology: Reconstructing Apple I BASIC from a Cassette Tape
The Apple I is extremely rare. Only 200 were built, and less than 100 are believed to be in existence. Neither Steve nor Woz own an Apple I any more, and neither does Apple Inc. The cassettes are even rarer, as not every Apple I came with one... So here is how to decode the signal. Let us first open the audio file in Audacity and look at the waveform... It is now time to write a small program to measure and dump the width of the pulses.


http://www.pagetable.com/?p=32
Post Reply