1. IBM 1401, A User's Manual - IBM 1401 (Processing Unit) mp3
2. IBM 1401, A User's Manual - IBM 1403 (Printer) mp3
3. IBM 1401, A User's Manual - IBM 1402 (Card Read-Punch) mp3
4. IBM 1401, A User's Manual - IBM 729 II (Magnetic Tape Unit) mp3
5. IBM 1401, A User's Manual - The Sun`s Gone Dim and the Sky`s Turned Black mp3