DR DOS 7.x
DR DOS is an MS-DOS compatible operating system from Digital Research that evolved from their earlier CP/M-86 based products Concurrent DOS and DOS Plus.
DR DOS was compatible with most PC/MS-DOS software, including Windows 3.1, disk utilities, debuggers, networking software, and TSRs.
Version 5 was especially successful as it beat Microsoft to the market with the ability to free up more of the 640k base memory, something that was badly needed at the time.
Later versions included even more powerful features, including a graphical shell called ViewMAX based on Digital Research GEM, disk caching, LapLink style file serial/parallel transfer, power management, built in help, an undelete tool, SuperStor disk compression, and a task switcher.
Over all, it was considered a very good product, and it appealed to power users.
DR DOS also played a key roll in giving computer manufactures leverage against Microsoft.
Release notes
This version adds DPMI support, VDM based multitasking, , and Novell Personal Netware. Novell had promised a wide variety of other features, but failed to deliver.
DR DOS was briefly renamed to "Novell DOS' after it was purchased by Novell. Version 7 was also briefly owned by Caldera released as OpenDOS, and then Lineo, and finally wound up under DRDOS, Inc.
After Microsoft intended to merge MS-DOS and Windows 95 as one commercial product, interest in developing DR DOS further mostly stopped. Eventually, parts of DR DOS 7.x were open sourced, and spawned a separate open source project based on that (not mirrored here).
Downloads
| Download name | Version | Language | Architecture | File size | Downloads |
|---|---|---|---|---|---|
 Caldera DR-DOS 7.02 (02-05-1998) (3.5-1.44mb) |
7.02 | English |
|
5.77MB | 0 |
|
Caldera DR-DOS 7.02 (02-27-1998) (3.5-1.44mb) |
7.02 | English |
|
5.77MB | 1 |
|
Caldera DR-DOS 7.02 Lite (02-05-1998) (3.5-1.44mb) |
7.02 Lite | English |
|
2.82MB | 1 |
|
Caldera DR-DOS 7.03 (01-07-1999) (3.5-1.44mb) |
7.03 | English |
|
5.8MB | 5 |
 Caldera OpenDOS 7.01 (11-04-1997) (3.5-720k) (5.25-1.2mb) (3.5-1.44mb) |
7.01 | English |
|
5.58MB | 1 |
|
Novell DOS 7.0 (01-26-1994) (3.5-1.44mb) |
7.0 | English |
|
8.27MB | 3 |
|
Novell DOS 7.0 (01-26-1994) (5.25-1.2mb) |
7.0 | English |
|
8.26MB | 0 |
|
Novell DOS 7.0 (02-22-1994) [German] (3.5-1.44mb) |
7.0 | German |
|
9.53MB | 0 |