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DR-DOS and Virtual Control Program Interface

Shortcuts: Differences, Similarities, Jaccard Similarity Coefficient, References.

Difference between DR-DOS and Virtual Control Program Interface

DR-DOS vs. Virtual Control Program Interface

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. In computing, the Virtual Control Program Interface (VCPI) is a specification published in 1989 by Phar Lap Software that allows a DOS program to run in protected mode, granting access to many features of the processor not available in real mode.

Similarities between DR-DOS and Virtual Control Program Interface

DR-DOS and Virtual Control Program Interface have 15 things in common (in Unionpedia): Addison-Wesley, API, Digital Research, DOS, DOS Protected Mode Interface, DOS Protected Mode Services, EMM386, Microsoft, Multiuser DOS, OS/2, PCMag, QEMM, Real mode, Virtual DOS machine, Windows NT.

Addison-Wesley

Addison–Wesley is an American publisher of textbooks and computer literature.

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API

An is a way for two or more computer programs or components to communicate with each other.

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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 DOS, DOS Plus, DR DOS and GEM.

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DOS

DOS is a family of disk-based operating systems for IBM PC compatible computers.

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DOS Protected Mode Interface

In computing, the DOS Protected Mode Interface (DPMI) is a specification introduced in 1989 which allows a DOS program to run in protected mode, giving access to many features of the new PC processors of the time not available in real mode.

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DOS Protected Mode Services

DOS Protected Mode Services (DPMS) is a set of extended DOS memory management services to allow DPMS-enabled DOS drivers to load and execute in extended memory and protected mode.

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EMM386

EMM386 is the expanded memory manager of Microsoft's MS-DOS, IBM's PC DOS, Digital Research's DR-DOS, and Datalight's ROM-DOS which is used to create expanded memory using extended memory on Intel 80386 CPUs.

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Microsoft

Microsoft Corporation is an American multinational corporation and technology company headquartered in Redmond, Washington.

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Multiuser DOS

Multiuser DOS is a real-time multi-user multi-tasking operating system for IBM PC-compatible microcomputers.

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OS/2

OS/2 (Operating System/2) is a series of computer operating systems, initially created by Microsoft and IBM under the leadership of IBM software designer Ed Iacobucci.

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PCMag

PC Magazine (shortened as PCMag) is an American computer magazine published by Ziff Davis.

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QEMM

Quarterdeck Expanded Memory Manager (QEMM) is a memory manager produced by Quarterdeck Office Systems in the late 1980s through the late 1990s.

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Real mode

Real mode, also called real address mode, is an operating mode of all x86-compatible CPUs.

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Virtual DOS machine

Virtual DOS machines (VDM) refer to a technology that allows running 16-bit/32-bit DOS and 16-bit Windows programs when there is already another operating system running and controlling the hardware.

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Windows NT

Windows NT is a proprietary graphical operating system produced by Microsoft as part of its Windows product line, the first version of which, Windows NT 3.1, was released on July 27, 1993.

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The list above answers the following questions

DR-DOS and Virtual Control Program Interface Comparison

DR-DOS has 235 relations, while Virtual Control Program Interface has 33. As they have in common 15, the Jaccard index is 5.60% = 15 / (235 + 33).

References

This article shows the relationship between DR-DOS and Virtual Control Program Interface. To access each article from which the information was extracted, please visit: