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PC DOS (IBM DOS)

A typical command line in PC DOS.
Company / developer IBM
OS family DOS
Working state Historic
Source model Closed source
Latest stable release PC DOS 2000 / 1998
Default user interface Command line interface
License Proprietary

IBM PC DOS is a DOS operating system for the IBM Personal Computer, sold throughout the 1980s and 2000s.

Contents

Naming

Official product name of "PC DOS" are as below:

  • IBM Personal Computer Disk Operation System 1.0 (short-name:PC DOS 1.0)
  • IBM Personal Computer Disk Operation System 2.0 (short-name:PC DOS 2.0)
  • IBM Personal Computer Disk Operation System 3.0 (short-name:PC DOS 3.0)
  • IBM DOS 4.0 (IBM changed product name)
  • IBM DOS 5.0
  • IBM PC DOS 6.1 (IBM changed product name again. "PC DOS" is not short-name.)
  • IBM PC DOS 6.3
  • IBM PC DOS 7
  • IBM PC DOS 2000 (IBM's last version)

History

The original 1981 arrangement between IBM and Microsoft was that Microsoft would provide the base product and that both firms would work on developing different parts of it into a more powerful and robust system, and then share the resultant code. PC DOS and MS-DOS were to be marketed separately: IBM selling to itself for the IBM PC, and Microsoft selling to the open market. However, at no time did IBM acquire the ownership of the source code of the operating system for its own PCs.

After Microsoft

 Please help improve this article or section by expanding it. Further information might be found on the talk page. (January 2008)

PC DOS remained a rebranded version of MS-DOS until 1993. IBM and Microsoft parted ways—MS-DOS 6 was released in March, and PC DOS 6.1 (separately developed) followed in June. QBasic was dropped and the MS-DOS Editor was replaced with E. PC DOS 6.3 followed in December.

PC DOS 7 was released in November 1994. The REXX programming language was added, as well as support for a new floppy disk format, XDF, which extended a standard 1.44 MB floppy disk to 1.86 MB.

The most recent release was PC DOS 2000, which found its niche in the embedded software market and elsewhere. It was based on PC DOS 7, and corrected issues with the Year 2000 problem. Branding of PC DOS 2000 included the phrase "includes PC DOS 7".

ThinkPad products currently have a copy of the latest version of PC DOS in their Rescue and Recovery partition.

For a short time in April 2008, IBM offered the license for PC DOS for just under $10,000, in the operating systems list for custom orders.[1][2].

Versions

See Comparison of x86 DOS operating systems for version information and a timeline.

References

  1. ^ Screen shot of Lenovo ThinkPad customization screen.
  2. ^ Cristian's Blog - Lenovo, Thinkpad and a great deal!
  • IBM Corporation and Microsoft, Inc. Dos 3.30: User's Guide. IBM Corporation, 1987. Part number 80X0933.
  • IBM Corporation and Microsoft, Inc. Dos 3.30: Reference (Abridged). IBM Corporation, 1987. Part number 94X9575.
  • IBM Corporation. Getting Started with Disk Operating System Version 4.00. IBM Corporation, 1988. Part number 15F1370.
  • IBM Corporation. Using Disk Operating System Version 4.00. IBM Corporation, 1988. Part number 15F1371.
  • IBM Corporation. IBM Disk Operating System Version 5.0. User Guide and Reference. IBM Corporation, 1991. Part number 07G4584.
  • IBM Corporation. PC DOS 7 User's Guide. IBM, 1995.
  • IBM Corporation. IBM PC DOS and Microsoft Windows User's Guide. Indianapolis, IN: Que Corporation, 1995. ISBN 0-7897-0276-2.

See also

External links

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