DR-DOS


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DR-DOS

An earlier multitasking DOS-compatible operating system from DRDOS, Inc., Lindon, Utah. DR-DOS was used in embedded systems, thin clients and bootable disks for antivirus recovery programs. The embedded version included display antialiasing so that it could be used in TV set-top boxes. A graphics-based browser was also available that let old 386 computers access the Internet.

An Illustrious History
DR-DOS was developed by Digital Research, the creators of the CP/M operating system (see CPM). It was popular during the late 1980s and early 1990s because it added many features lacking in MS-DOS, including memory management and disk compression. DR-DOS motivated Microsoft to improve subsequent versions of MS-DOS and also keep DR-DOS from succeeding.

A Lot of Moving Around
In 1991, Digital Research was acquired by Novell, which later sold DR-DOS to Caldera. Since Caldera owned the history of the product, it sued Microsoft in 1999 for antitrust violations. The case was later settled. Caldera then spun off DR-DOS to Lineo, Inc., a Canopy company, where it was enhanced for the embedded market. In 2002, DeviceLogics acquired the product. A couple years later, DeviceLogics changed its name to DRDOS, Inc. See DOS.
References in periodicals archive ?
Not surprisingly, the unnamed amici claimed that MS-DOS has triumphed in the market even though it is "inferior" to competing operating systems, such as DR-DOS.(136) They even stated that "It is common for `better' products to fail if a competitor controls the architecture in which the product operates."(137) As we have seen, however, what history teaches is that failure of better products is not common at all, and so claims of inferiority ought to be viewed skeptically.
Just as in its Statement of Fact last week (CI No 3,650), Caldera still maintains that Microsoft used vaporware announcements, fear, uncertainty and doubt, exclusionary licenses, intentionally created incompatibilities and misperception of incompatibilities, blacklists and illegal tying to squash DR-DOS, a competitor to its own MS-DOS which is now owned by Caldera.
By Rachel Chalmers Microsoft Corp has responded vigorously to the accusations against it in Caldera Inc's Statement of Facts (CI No 3,650), a scathing indictment of Microsoft's business practices in pitting its own MS-DOS against Digital Research Inc (DRI)'s DR-DOS. Microsoft's riposte is a by-now-familiar litany of complaints, beginning with a dismissal of the Statement as a "mishmash of out-of-context snippets" and ending with a reaffirmation of Microsoft's earnest desire to advance the evolution of personal computing, a desire that is constantly being thwarted by anti- consumer, anti-competitive enemies like Caldera.
Caldera now owns DR-DOS, the rival to MS-DOS that was developed by Digital Research Inc (DRI) in the eighties.