MS-DOS 1.20
| Version of MS-DOS | |
 | |
| Version | 1.20 |
|---|---|
| Release date | 1981-12 |
| Replaces | |
| 86-DOS 1.14 | |
| Replaced by | |
| MS-DOS 1.21 | |
According to MS-DOS 2.11 source code, MS-DOS 1.20 is an unreleased internal version of MS-DOS.
Change log[edit | edit source]
1.20 12/31/81 Add time to FCB; separate FAT from DPT; Kill SMALLDIR;
Add FLUSH and MAPDEV calls; allow disk mapping in DSKCHG;
Lots of smaller improvements