- DR-DOS (written as DR DOS, without a hyphen, in versions up to and including 6.0) is a disk operating system for IBM PC compatibles.
- nsanedown.thepiracy.org news/technology-news/the-…DR DOS 5 also renamed the core system files. The DOS BIOS became IBMIO.COM, and the kernel became IBMDOS.COM. This was a huge release.
- archiveos.org drdos/DR-DOS/OpenDOS Enhancement Project – the OpenDOS 7.01 source code based operating system develops by Udo Kuhnt between 2005 and 2011.
- geoffchappellmirror.github.io notes/windows/…This is not to say that copying the MS-DOS interfaces and any amount of supporting architecture to make DR DOS was in any way wrong or unlawful.
- winworldpc.com product/dr-dos/6xReleased shortly after MS-DOS 5.0, DR DOS added SuperStor drive compression, and TASKMAX task switcher, once again one-upping Microsoft.
- pmwiki.xaver.me drdoswiki/index.php…To clarify: DR-DOS 8.0 and 8.1 vs EDR-DOS (FAT32 code stolen ?) 2. Former owners of Dr-DOS. Digital Research (Dr-DOS). Novell (Novell DOS).
- archive.org SoftwareDR DOS release 6.00 05/05/1992Disk 1 of 2: STARTUPDisk 2 of 2: ViewMaxSerial# C81-2012.