PC DOS
| PC DOS | |
|---|---|
|
|
 PC DOS 1.1 prompt |
|
| developer | IBM & Microsoft |
| License (s) | proprietary |
| Current version | 2000 (April 1998) |
| ancestry |
86-DOS ↳ PC DOS (licensed for IBM) |
| Architecture (s) | IBM PC ( x86 from 8086 / 8088 ) |
| timeline | QDOS / 86-DOS to 1.14 PC DOS 1.0 MS-DOS PC DOS / IBM DOS 1.1 to 6.3 PC DOS 7.0 to 2000 |
| no longer available ( www.ibm.de ) | |
PC DOS , partly also IBM DOS , is a branded version of MS-DOS distributed by IBM from the 1980s to the early 2000s, which was licensed by Microsoft for use on IBM PC-compatible computers . Together with MS-DOS, it established the de facto standard for PC-compatible disk operating systems (DOS for short).
history
Overview
PC DOS or IBM DOS is largely identical to MS-DOS from Microsoft until about 1993 ; IBM has made some changes to it that have made the operating system somewhat more stable and faster. This was possible because the operating system only had to run on original IBM PCs, which made it possible to dispense with adaptations to incompatible computers. When equipped with utilities was largely in Central Point place at Helix and Symantec purchased. In addition, it was equipped with the REXX known from OS / 2 .
Starting with version 6.1, PC DOS was also openly positioned as a competitor to MS-DOS. Thanks to improvements, with full compatibility at the same time (IBM also has the source code for Windows 3.x ), it was first widely used on non-IBM PCs.
With the version 1.1 and higher z. B. DOS versions delivered by Compaq were OEM versions of the manufacturers concerned ( Compaq , Zenith Data Systems , Wang Laboratories , Televideo , Tandy , Amstrad and Toshiba ), some of which only ran on their PCs. While there were mostly OEM versions of MS-DOS, there were also OEM versions of PC DOS (e.g. DOS 3.31 from Compaq / Wyse).
The latest versions PC DOS 7 and PC DOS 2000 (2004 status) contain a good text editor , allow compressed file systems and have improved year 2000 compatibility and Euro support (in terms of the character set ). Unlike the versions up to 6.3, these are no longer based directly on an MS-DOS version, but were developed further by IBM completely independently.
history
The boot files of the PC DOS are IBMBIO.COM and IBMDOS.COM .
| DOS version | announcement | Availability | new functions / changes to MS-DOS |
|---|---|---|---|
| PC DOS 1.00 | 08/1981 | 10/1981 | PC DOS was not initially supplied as a stand-alone DOS, as Microsoft had developed MS-DOS explicitly for IBM. IBM has eliminated a number of bugs (it is said to have been over 300) in the "finished" DOS (base was MS-DOS 1.14), so that a joint copyright of IBM and Microsoft was shown in the first version. |
| PC DOS 1.05 | Bug fix | ||
| PC DOS 1.10 | 05/1982 | 07/1982 | For the first time PC DOS delivered as OEM of the MS-DOS available for IBM-compatible PCs. Corresponds to MS-DOS 1.25. |
| PC DOS 1.85 | - | 04/1983 | Internal release, identifies as 1.10; PATH and MODE introduced; TYPE added parameter / P; Command line editable, COMMAND.COM can memory resident loaded |
| PC DOS 2.00 | 03/1983 | 03/08/1983 | Support for IBM-PC XT - subdirectories were made possible for the first time |
| PC DOS 2.10 | 11/1983 | 11/01/1983 | Support for IBM PCjr |
| PC DOS 2.11 | 05/1984 | - | appeared 6 months after MS-DOS 2.11 |
| PC DOS 3.00 | 08/14/1984 | 09/14/1984 | Support for IBM-PC AT |
| PC DOS 3.10 | 08/14/1984 | 03/1985 | Support for IBM PC network |
| PC DOS 3.20 | 12/1985 | 04/1986 | New commands: replace, xcopy |
| PC DOS 3.21 | 12/1985 | 1986 | full support for IBM JX , MS-DOS 3.21 only released in 1987 |
| IBM DOS 3.30 | 04/02/1987 | 04/02/1987 | 4 months before MS-DOS 3.30 appeared, PC DOS could now be installed on all IBM-compatible PCs. |
| IBM DOS 3.31 | for PC-DOS OEMs | ||
| IBM DOS 4.00 | 07/19/1988 | 10/1988 | corresponds to MS-DOS 4.00: first graphical DOS shell, support for hard disk partitions larger than 32 MB (the PC-DOS OEMs had this since version 3.31) |
| IBM DOS 4.01 | 04/1989 | - | corresponds to MS-DOS 4.01 |
| IBM DOS 5.00 | 05/1991 | - | corresponds to MS-DOS 5.00: new graphical DOS shell; Introduction of the intuitive BASIC interpreter QBasic with the text editor EDIT; Integration of the central point tools UNDELETE and MIRROR; "DOSKEY" as a history function for the command line; Use of the UMBs through the new Emm386 driver; Manual of over 780 pages |
| IBM DOS 5.001a | 02/1992 | - | corresponds to MS-DOS 5.00 revision A: CHKDSK bug fix for UNDELETE; UNDELETE bugfix for CHKDSK |
| IBM DOS 5.01 | 08/1992 | - | EMM386 bugfix for WINDOWS 3.1 |
| IBM DOS 5.02 | 09/1992 | - | Interlink added |
| IBM PC DOS 6.10 | 06/29/1993 | 07/26/1993 | Screen outputs (if they are done via DOS functions) optimized; PCMCIA support; PenDOS extension; Streamer backup; Online data compression; Memory optimization with RAMBoost ; CPBackup; in addition to the normal manual, one for each keyboard layout; the graphical editor (E), which has been used internally by IBM for a long time (can only be operated with a myriad of unusual key combinations); Data carrier compression and detailed explanation of all commands with all parameters; Optimization of batch files (batch remains open - until then .BAT files were closed after each command, the same processed, BAT opened, ...), AntiVirus from IBM (command line, with SAA-compatible interface - the "total display utility"). Renamed in PC DOS, mouse driver automatically occupies UMB |
| PC DOS 6.30 | 04/27/1994 | 04/27/1994 | Calculate in the command line with acalc; Bug fixes; Revised versions of the utilities; six manuals: Installation , Introduction , User Guide , Reference Guide and Error Messages , Keyboards and Character Conversion Charts , and "Data Compression " |
| PC DOS 7.00 | 11/1994 | 02/28/1995 | Installation with mouse support when updating; Removal of code from DOS versions prior to 3.0 - DOS became faster, but older Clipper versions could only be run after patching; E with mouse support and extended menus; REXX programming language (from OS / 2) integrated; File Update Program; graphic help; Power management; Stac instead of SuperStor (slower, but higher compression); RAMBoost optimized; Reduction of main memory requirements; with DYNALOAD it was possible for the first time to reload drivers in normal operation on the command line (with lh dynaload even into upper memory); Docking support for plug and play computers |
| DOS 2000 | 04/1998 | 05/28/1998 | identifies itself as PC-DOS 7.0 Revision 1 ; Integration of the updates for Euro support and year 2000 security also available for 7.0; PCMCIA update |
|
Legend:
Old version
|
|||
Graphical user interfaces
Microsoft Windows 3.x runs under PC DOS because it had the same code base as MS-DOS. Other graphical user interfaces for PC DOS include PC / GEOS , SEAL or OpenGEM . User interfaces in the broader sense were also the DOS shell based on file managers, as well as the similarly structured but significantly more powerful PC shell from the PC Tools tool package . Both shells were capable of task switching .
Usage today
Like other DOS systems, PC DOS is used for embedded systems or system recovery, as well as not to sell PCs without an operating system.
See also
- Disk Operating System
- For binary-compatible DOS operating systems, see PC-compatible DOS
- List of command line commands (DOS)
Web links
Individual evidence
- ↑ WinWorld: PC-DOS 2.x. Retrieved December 15, 2018 .
- ^ Microsoft MS-DOS. Retrieved December 15, 2018 .