The Computer History Museum scanned in and uploaded some of the original 1978 DOS source code for the Apple II.
There are seven files in this release that may be downloaded by clicking the hyperlinked filename on the left:
| Apple_DOS_2June1978.pdf | Scanned lineprinter listing from June 2, 1978 |
| Apple_DOS_6Oct1978.pdf | Scanned lineprinter listing from October 6, 1978 |
| Apple_DOS_6Oct1978_retyped.docx | Retyped source code of the October 6th version (This has not yet been assembled, and there may be some typographical errors.) |
| Apple_DOS_RW_30May1978.txt | The source code of the low-level read/write routines by Steve Wozniak and Randy Wigginton. |
| Apple_DOS_tech_docs.pdf | Various technical specifications and designs relating to the Apple II disk drive |
| Apple_DOS_contracts.pdf | Various contracts and addenda between Apple and Shepardson Microsystems |
| meeting_minutes_5Oct1978.pdf | Minutes of a meeting between Apple and Shepardson Microsystem about bugs and enhancements. (Unfortunately we don’t have the list that is referred to.) |
Source: http://www.computerhistory.org/atchm/apple-ii-dos-source-code/
