The Multiuser DOS Federation (MDOS) was an industry alliance to promote the growth and acceptance of multi-user DOS-based solutions on 286, 386 and 486 computers. It was formed in July 1990. Initially among them were

Digital Research Digital Research, Inc. (DR or DRI) was a privately held American software company created by Gary Kildall to market and develop his CP/M operating system and related 8-bit, 16-bit and 32-bit systems like MP/M, Concurrent DOS, FlexOS, Multiuser ...

, Theos Software, SunRiver, DigiBoard,

Alloy An alloy is a mixture of chemical elements of which in most cases at least one is a metal, metallic element, although it is also sometimes used for mixtures of elements; herein only metallic alloys are described. Metallic alloys often have prop ...

, Viewport International and others. The idea was to reduce costs by allowing workgroups to run DOS applications from a shared PC while working on terminals or workstations. On 18 February 1991, several members of the Multiuser DOS Federation issued a press release regarding their intentions to support DPMI (mostly DPMI 1.0) in their products including Alloy Computer Products Inc. ( PC-PLUS), Bluebird Systems, Inc. ( SuperDOS), Concurrent Controls, Inc. ( CCI Concurrent DOS 386, CCI Multiuser DOS), Digital Research, Inc. ( DR Multiuser DOS), S&H Computer Systems, Inc. (

TSX-32 TSX-32 is a discontinued general purpose 32-bit multi-user multitasking operating system for the x86 architecture platform, with a command line user interface. It is compatible with some 16-bit DOS applications and supports the FAT16 and FA ...

), StarPath Systems, Inc. ( Vmos/3),

The Software Link The Software Link, Inc. (TSL) was a company in Norcross, Georgia, Norcross, Georgia (U.S. state), Georgia that developed software for personal computers from 1986 to 1994. The company was co-founded by Rod Roark and Gary Robertson. Products * PC ...

( PC-MOS/386), THEOS Software Corporation (

THEOS THEOS, which translates from Greek as "God", is an operating system which started out as OASIS, a microcomputer operating system for small computers that use the Zilog Z80, Z80 processor. When the operating system was launched for the IBM Per ...

), Intelligent Graphics Corporation ( VM/386). Several of them had previously worked on the alternative XVCPI specification.

References

DOS on IBM PC compatibles {{international-org-stub

See also

References