546:
797:-inch 1.44 MB floppy disk drives, which IBM introduced in its 80286-based and higher PS/2 models. The upgrade from DOS 3.2 to 3.3 was completely written by IBM, with no development effort on the part of Microsoft, who were working on "Advanced DOS 1.0". DOS 3.30 was the last version designed with the IBM XT and floppy-only systems in mind; it became one of the most popular versions and many users preferred it to its buggy successor.
731:(MB) floppy disks. Planned networking capabilities in DOS 3.00 were judged too buggy to be usable and Microsoft disabled them prior to the OS's release. In any case, IBM's original plans for the AT had been to equip it with a proper next-generation OS that would use its extended features, but this never materialized. PC DOS 3.1 (released March 1985) fixed the bugs in DOS 3.00 and supported IBM's Network Adapter card on the
353:
1985, the joint development agreement (JDA) between IBM and
Microsoft for the development of PC DOS had each company giving the other company a completely developed version. Most of the time branded versions were identical, but there were some cases in which each of the companies made minor modifications to their version of DOS. In the fall of 1984, IBM gave all the source code and documentation of the internally developed
712:
52:
3265:
2703:
43:
3276:
1883:(xvii+1053 pages; 29 cm) (NB. This original edition contains flowcharts of the internal workings of the system. It was withdrawn by Microsoft before mass-distribution in 1986 because it contained many factual errors as well as some classified information which should not have been published. Few printed copies survived. It was replaced by a completely reworked edition in 1988.
632:
In late 1981, Paterson, now at
Microsoft, began writing PC DOS 1.10. It debuted in May 1982 along with the Revision B IBM PC. Support for the new double-sided drives was added, allowing 320 KB per disk. A number of bugs were fixed, and error messages and prompts were made less cryptic.
857:
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. Most of the new features from MS-DOS 6.0 appeared in PC DOS 6.1 including the new boot menu support and
333:
The reasons were internal. We had a terrible problem being sued by people claiming we had stolen their stuff. It could be horribly expensive for us to have our programmers look at code that belonged to someone else because they would then come back and say we stole it and made all this money. We had
671:
in place of the CP/M-derivative file control blocks and loadable device drivers could now be used for adding hardware beyond that which the IBM PC BIOS supported. BASIC and most of the utilities provided with DOS were substantially upgraded as well. A major undertaking that took almost 10 months of
352:
Over the history of IBM PC DOS, various versions were developed by IBM and
Microsoft. By the time PC DOS 3.0 was completed, IBM had a team of developers covering the full OS. At that point in time, either IBM or Microsoft completely developed versions of IBM PC DOS going forward. By
805:
PC DOS 4.0 (internally known as DOS 3.4 originally) shipped July 1988. DOS 4.0 had some compatibility issues with low-level disk utilities due to some internal data structure changes. DOS 4.0 used more memory than DOS 3.30 and it also had a few glitches. Newly added EMS drivers were only
313:
The IBM task force assembled to develop the IBM PC decided that critical components of the machine, including the operating system, would come from outside vendors. This radical break from company tradition of in-house development was one of the key decisions that made the IBM PC an industry
577:, which Microsoft was helping IBM to write. IBM had more people writing requirements for the computer than Microsoft had writing code. O'Rear often felt overwhelmed by the number of people he had to deal with at the ESD (Entry Systems Division) facility in
834:
option to display command syntax. Aside from IBM's PC DOS, MS-DOS was the only other version available as OEM editions vanished since by this time PCs were 100% compatible so customizations for hardware differences were no longer necessary.
1936:; Rubin, Darryl; Ryan, Ralph; Schulmeisters, Karl; Shah, Rajen; Shaw, Barry; Short, Anthony; Slivka, Ben; Smirl, Jon; Stillmaker, Betty; Stoddard, John; Tillman, Dennis; Whitten, Greg; Yount, Natalie; Zeck, Steve (1988). "Technical advisors".
967:
PC-DOS 2000 was the last version of IBM PC-DOS that was sold at retail. IBM advertised it as a Y2K compliant DOS. As it reports itself as "IBM PC-DOS 7 Revision 1", it is often refereed to as "IBM PC-DOS7R1" or just "PC-DOS7R1".
1851:; Tomlin, Jim; Vian, Kathleen; Wolverton, Van. Beley, Jim; Preppernau, Barry; Beason, Pam; Lewis, Andrea; Rygmyr, David (eds.). Microsoft Reference Library. Vol. 1 (Original withdrawn ed.). Redmond, Washington, USA:
727:, its next-generation machine. Along with this was DOS 3.00. Despite jumping a whole version number, it again proved little more than an incremental upgrade, adding nothing more substantial than support for the AT's new 1.2
334:
lost a series of suits on this, and so we didn't want to have a product which was clearly someone else's product worked on by IBM people. We went to
Microsoft on the proposition that we wanted this to be their product.
963:
and other fixes applied. To applications, PC DOS 2000 reports itself as "IBM PC DOS 7.00, revision 1", in contrast to the original PC DOS 7, which reported itself as "IBM PC DOS 7.00, revision 0".
672:
work, DOS 2.0 was more than twice as big as DOS 1.x, occupying around 28 KB of RAM compared to the 12 KB of its predecessor. It would form the basis for all
Microsoft consumer-oriented OSes until 2001, when
943:. An algebraic command line calculator and a utility program to load device drivers from the command line were added. PC DOS 7 also included many optimizations to increase performance and reduce memory usage.
702:
and licensed their own OEM version of DOS 1.10 (quickly replaced by DOS 2.00) from
Microsoft. Other PC compatibles followed suit, most of which included hardware-specific DOS features, although some were generic.
774:
In June 1985, IBM and
Microsoft signed a long-term Joint Development Agreement to share specified DOS code and create a new operating system from scratch, known at the time as Advanced DOS. On 2 April 1987
602:
1.x and most of its architecture, function calls and file-naming conventions were copied directly from the older OS. The most significant difference was the fact that it introduced a different file system,
2194:
An additional undocumented feature added to the User
Interface is the ability to drop directly out to a DOS prompt. Pressing F3 (there is no prompt for this) will exit the recovery utility and go to a DOS
1912:; Borman, Reuben; Borman, Rob; Butler, John; Carroll, Chuck; Chamberlain, Mark; Chell, David; Colee, Mike; Courtney, Mike; Dryfoos, Mike; Duncan, Rachel; Eckhardt, Kurt; Evans, Eric; Farmer, Rick;
325:
IBM wanted
Microsoft to retain ownership of whatever software it developed, and wanted nothing to do with helping Microsoft, other than making suggestions from afar. According to task force member
1163:. This is particularly important for DOS 7, because various features introduced in MS-DOS 7.0 and 7.1 are not supported in PC DOS 7.x, and vice versa, e.g., MS-DOS does not support
338:
IBM first contacted Microsoft to look the company over in July 1980. Negotiations continued over the months that followed, and the paperwork was officially signed in early November.
297:. Both operating systems were identical or almost identical until 1993, when IBM began selling PC DOS 6.1 with new features. The collective shorthand for PC DOS and MS-DOS was
1920:; McKinney, Bruce; Martin, Pascal; Mathers, Estelle; Matthews, Bob; Melin, David; Mergentime, Charles; Nevin, Randy; Newell, Dan; Newell, Tani; Norris, David; O'Leary, Mike;
1916:; Geary, Michael; Griffin, Bob; Hogarth, Doug; Johnson, James W.; Kermaani, Kaamel; King, Adrian; Koch, Reed; Landowski, James; Larson, Chris; Lennon, Thomas; Lipkie, Dan;
349:
operating systems. IBM's expectation proved correct: one survey found that 96.3% of PCs were ordered with the $ 40 PC DOS compared to 3.4% with the $ 240 CP/M-86.
2737:
2366:
1980:(xix+1570 pages; 26 cm) (NB. This edition was published in 1988 after extensive rework of the withdrawn 1986 first edition by a different team of authors.
810:, a full-screen utility designed to make the command-line OS more user-friendly. Microsoft took back control of development and released a bug-fixed DOS 4.01.
3321:
1948:; Rabinowitz, Chip; Tomlin, Jim; Wilton, Richard; Wolverton, Van; Wong, William; Woodcock, JoAnne (Completely reworked ed.). Redmond, Washington, USA:
845:
This was the last version of DOS that IBM and Microsoft shared the full code for, and the DOS that was integrated into OS/2 2.0's, and later Windows NT's,
1752:
1723:
2207:
3280:
302:
1056:
1884:
3306:
3336:
779:
was announced as the first product produced under the agreement. At the same time, IBM released its next generation of personal computers, the
683:
In October 1983 (officially 1 November 1983) DOS 2.1 debuted. It fixed some bugs and added support for half-height floppy drives and the new
1006:
were not released in retail, but used in products such as the IBM ServerGuide Scripting Toolkit. A build of this version of DOS appeared in
806:
compatible with IBM's EMS boards and not the more common Intel and AST ones. DOS 4.0 is also notable for including the first version of the
2730:
1994:
2034:
3341:
2777:
2359:
1089:
1320:
2551:
2035:"Microsoft Operating System/2 With Windows Presentation Manager Provides Foundation for Next Generation of Personal Computer Industry"
1595:
923:
PC DOS 7 was released in April 1995 and was the last release of DOS before IBM software development (other than the development
2772:
2338:
2312:
2150:
1957:
1860:
1691:
1670:
1645:
1620:
1570:
1545:
1520:
1474:
1449:
1424:
1244:
1084:
1003:
2326:
1374:
3331:
3311:
3269:
2890:
2723:
2506:
1144:
951:
The most recent retail release was PC DOS 2000 – released from Austin in 1998 – which found its niche in the
935:, which extended a standard 1.44 MB floppy disk to 1.86 MB. SuperStor disk compression technology was replaced with
590:
discussed rumors of a forthcoming personal computer with "a CP/M-like DOS ... to be called, simply, 'IBM Personal Computer DOS
3326:
2706:
2352:
191:
English (US), English (UK), Danish, Dutch, Finnish, French, German, Italian, Norwegian, Portuguese, Russian, Spanish, Swedish
1113:
Formally known as "The IBM Personal Computer DOS" from versions 1.0 through 3.30, as reported in those versions' respective
3100:
2068:
Intel Corporation, "NewsBit: Microsoft, Intel Develop Power Standard", Microcomputer Solutions, March/April 1992, page 1
1072:
2129:
3185:
3135:
2501:
2447:
932:
659:) began work on PC DOS 2.0. Completely rewritten, DOS 2.0 added subdirectories and hard disk support for the new
163:
140:
569:. O'Rear got 86-DOS to run on the prototype PC in February 1981. 86-DOS had to be converted from 8-inch to 5.25-inch
3215:
1068:
1060:
2805:
839:
598:
IBM PC DOS 1.0 for its August 1981 release with the IBM PC. The initial version of DOS was largely based on
558:
206:
1197:
2615:
2556:
2511:
2405:
2236:
1759:
1716:
995:
660:
87:
1981:
663:, which debuted in March 1983. A new 9-sector format bumped the capacity of floppy disks to 360 KB. The
3130:
3105:
2215:
3301:
2915:
2546:
2457:
2452:
2442:
2395:
956:
889:
226:
3316:
2746:
2638:
2464:
1194:
Remi's Classic Computers - My collection of vintage computers, game consoles, history, specs and repairs
780:
768:
369:
361:
278:
274:
2179:
1047:
allow one to prepare FAT32 disks. Additional utilities are taken from PC DOS 2000, where needed.
2782:
2400:
1792:
1232:
1094:
860:
246:
78:
3075:
1717:"86-DOS version 0.3 (1980-11-15) License Agreement between Seattle Computer Products and Microsoft"
912:
892:
846:
827:
823:
635:
578:
243:
3140:
2330:
3055:
3050:
2895:
2787:
2419:
2415:
1775:
1739:
1292:
1260:
986:
products had a copy of the latest version of PC DOS in their Rescue and Recovery partition.
872:
750:
615:
609:
2103:
2089:
1236:
1225:
2042:
895:, such as Central Point Backup Utility (CPBACKUP). PC DOS 6.1 reports itself as DOS 6.00.
326:
3195:
2496:
2427:
2334:
2308:
1971:
1963:
1953:
1940:. By Duncan, Ray; Bostwick, Steve; Burgoyne, Keith; Byers, Robert A.; Hogan, Thom; Kyle, Jim;
1933:
1874:
1866:
1856:
1836:
1240:
960:
952:
699:
656:
545:
282:
212:
83:
1347:
1264:
1055:
In 1986, IBM announced PC DOS support for client access to the file services defined by
2669:
2664:
2566:
2375:
936:
819:
238:
186:
341:
Although IBM expected that most customers would use PC DOS, the IBM PC also supported
2945:
1949:
1945:
1929:
1852:
1325:
695:
586:
358:
2158:
301:, which is also the generic term for disk operating system, and is shared with dozens of
2077:
711:
2900:
2531:
2240:
1901:
1847:. By Bornstein, Howard; Bredehoeft, Lawrence; Duncan, Ray; Morris, Carol; Rose, David;
1840:
1499:
1011:
732:
652:
219:
51:
1778:
case as exhibit #2/#3. The document also carries a typed date stamp as of 1981-07-22.)
3295:
3190:
3045:
2940:
2625:
2536:
2387:
1941:
1921:
1917:
1909:
1828:
1824:
881:
783:(PS/2). PC DOS 3.3, released with the PS/2 line, added support for high density
562:
357:
for DOS to Microsoft so that Microsoft could more fully understand how to develop an
346:
115:
1265:"The Man Behind The Machine? A PC Exclusive Interview With Software Guru Bill Gates"
903:
PC DOS 6.3 followed in December. PC DOS 6.3 was also used in OS/2 for the
3065:
3020:
2690:
2659:
2474:
1925:
1832:
1788:
1007:
924:
570:
566:
42:
931:
programming language was added, as well as support for a new floppy disk format,
3210:
2875:
2570:
2516:
1352:
1297:
1269:
1114:
1035:
720:
668:
621:
584:
Perhaps the first public mention of the operating system was in July 1981, when
365:
354:
230:
2715:
1403:
1075:
was added to PC DOS when they became available on the DDM server systems.
2960:
2950:
2847:
2837:
2056:
1913:
1905:
1848:
1820:
1816:
1063:
available on IBM System/36, IBM System/38 and IBM mainframe computers running
1029:
1023:
885:
677:
673:
648:
319:
62:
1878:
3205:
3160:
3035:
3030:
3025:
3015:
2610:
1975:
1160:
908:
807:
724:
595:
315:
290:
67:
2344:
2019:
2244:
17:
3235:
3200:
3000:
2985:
2980:
2925:
2920:
2810:
2654:
2578:
2541:
983:
728:
684:
626:
1753:"86-DOS Sales Agreement between Seattle Computer Products and Microsoft"
3250:
3220:
3175:
3150:
3085:
3080:
3070:
2975:
2965:
2955:
2935:
2905:
2880:
2857:
2852:
2842:
2767:
2600:
2526:
2437:
2432:
1130:
971:
940:
904:
866:
599:
342:
258:
3230:
3225:
3125:
3115:
3110:
3090:
3040:
3005:
2930:
2885:
2827:
2800:
2633:
2484:
2469:
2183:
2047:(NB. A copy of Microsoft's 1987-04-02 press release announcing OS/2.)
1189:
1015:
877:
691:
554:
294:
2180:"How to use the pre-boot service partition to recover your software"
749:-inch double-density 720 KB floppy disk drives, supporting the
1021:
Most builds of this version of DOS are limited to the kernel files
3245:
3180:
3170:
3155:
3120:
3010:
2970:
2832:
2822:
2595:
2588:
2521:
1059:(DDM). This enabled programs on PCs to create, manage, and access
999:
710:
604:
544:
3240:
3165:
3145:
3095:
3060:
2910:
2605:
2489:
2154:
2121:
1967:
1164:
1064:
928:
776:
664:
574:
2719:
2348:
2298:
IBM Disk Operating System Version 5.0. User Guide and Reference
1870:
561:(SCP), which was modified for the IBM PC by Microsoft employee
2868:
2674:
2479:
2379:
2211:
1695:
1649:
1624:
1599:
1574:
1549:
1524:
1478:
1453:
1428:
1381:
1152:
298:
286:
199:
97:
71:
2322:. Margaret Averett, 1995. Part number 83G9260 (S83G-9260-00).
1924:; Olsson, Mike; Osterman, Larry; Ostling, Ridge; Pai, Sunil;
1227:
Hard Drive: Bill Gates and the Making of the Microsoft Empire
629:(KB) 5.25-inch floppies were the only disk format supported.
639:
was now able to load files greater than 64 KB in size.
818:
DOS 5 debuted in June 1991. DOS 5 supported the use of the
345:, which became available six months after PC DOS, and
1845:
MS-DOS (Versions 1.0-3.2) Technical Reference Encyclopedia
2151:"Drivers and Software for Legacy (Discontinued) Products"
2284:
Getting Started with Disk Operating System Version 4.00
2057:
History of Microsoft Windows and MS-DOS (Miscellaneous)
1167:, and PC DOS 7 and 2000 do not support LBA access.
767:-inch floppy disks, released April 1986, and later the
619:
commands were separate executables rather than part of
2122:"Information and history about PC DOS and MS-DOS"
565:
with assistance from SCP (later Microsoft) employee
322:, was eventually selected for the operating system.
2993:
2866:
2754:
2683:
2647:
2624:
2565:
2414:
2386:
647:Later, a group of Microsoft programmers (primarily
237:
218:
205:
195:
185:
162:
139:
121:
111:
103:
93:
77:
61:
2305:IBM PC DOS and Microsoft Windows User's Guide
1224:
1014:. Version 7.1 indicates support for FAT32 also in
289:from the early 1980s into the 2000s. Developed by
1938:The MS-DOS Encyclopedia: versions 1.0 through 3.2
1375:"Product Announcement: The IBM Personal Computer"
2208:"IBM ServerGuide Scripting Toolkit, DOS Edition"
1404:"IBM Personal Computer DOS Version 1.1.0 (1982)"
826:(UMBs) on 80286 and later systems to reduce its
549:User manual and diskette for IBM PC DOS 1.1
2307:. Suzanne Weixel, 2nd ed., Indianapolis, 1995.
830:usage. Also all DOS commands now supported the
1896:
1894:
1892:
1321:"The IBM Personal Computer: First Impressions"
1218:
1216:
1214:
364:, overlapping windows (for its development of
2731:
2360:
2300:. IBM Corporation, 1991. Part number 07G4584.
2293:. IBM Corporation, 1988. Part number 15F1371.
2286:. IBM Corporation, 1988. Part number 15F1370.
2279:. IBM Corporation, 1987. Part number 94X9575.
2272:. IBM Corporation, 1987. Part number 80X0933.
8:
955:market and elsewhere. PC DOS 2000 is a
35:
263:IBM Personal Computer Disk Operating System
3275:
2760:
2738:
2724:
2716:
2367:
2353:
2345:
838:The POWER.EXE was introduced that has the
34:
1380:(Press release). White Plains, New York:
1125:
1123:
553:Microsoft first licensed, then purchased
2291:Using Disk Operating System Version 4.00
2243:. 2004-01-03. TECH108761. Archived from
2214:. 2008-01-24. MIGR-53564. Archived from
2115:
2113:
1057:Distributed Data Management Architecture
379:
1180:
1106:
1671:"Announcement Letter Number ZP95-0102"
1596:"Announcement Letter Number ZP91-0432"
1223:Wallace, James; Erickson, Jim (1992).
974:used PC DOS 2000 in their legacy
293:, it was also sold by that company as
607:. Unlike all later DOS versions, the
7:
2275:IBM Corporation and Microsoft, Inc.
2268:IBM Corporation and Microsoft, Inc.
2020:"DOS 2.0 and 2.1 | OS/2 Museum"
1692:"Announcement Letter Number 298-169"
1646:"Announcement Letter Number 294-263"
1621:"Announcement Letter Number 293-347"
1571:"Announcement Letter Number 288-380"
1546:"Announcement Letter Number 287-098"
1521:"Announcement Letter Number 286-129"
1475:"Announcement Letter Number 284-283"
1450:"Announcement Letter Number 283-389"
1425:"Announcement Letter Number 283-034"
735:. PC DOS 3.2 added support for
3322:Floppy disk-based operating systems
2237:"Create a Standard Ghost Boot Disk"
1090:Comparison of DOS operating systems
1051:PC DOS as a distributed file client
719:In August 1984, IBM introduced the
1835:; Peters, Chris; Phillips, Bruce;
994:PC DOS 7.1 added support for
285:. It was manufactured and sold by
25:
1085:Timeline of DOS operating systems
911:disk compression technology from
888:. It also licensed components of
303:disk operating systems called DOS
3274:
3264:
3263:
2702:
2701:
907:. PC DOS 6.3 also featured
318:, founded five years earlier by
168:
145:
56:Version 1.10 (1982) command line
50:
41:
2132:from the original on 2020-02-21
1823:; King, Adrian; Larson, Chris;
1729:from the original on 2020-02-18
1348:"CP/M-86 Price Plunges to $ 60"
1200:from the original on 2019-08-04
3307:Discontinued operating systems
2327:PC DOS 7 Technical Update
2277:DOS 3.30: Reference (Abridged)
2033:Necasek, Michal (2004-06-24).
1928:; Perez, Gary; Peters, Chris;
1843:(1986). "Technical advisors".
1774:(NB. Published as part of the
1738:(NB. Published as part of the
1319:Lemmons, Phil (October 1981).
1067:. In 1988, client support for
753:, IBM's first computer to use
1:
3337:Proprietary operating systems
1402:Sedory, Daniel (2008-08-13).
1291:Edlin, Jim (June–July 1982).
715:Retail box of IBM PC DOS 3.30
1758:. 1981-07-27. Archived from
2806:Multitasking MS-DOS 4.0/4.1
1993:Morgan, Chris (July 1981).
1793:"Is DOS a Rip-Off of CP/M?"
1673:(Press release). 1995-02-28
1356:. February 1983. p. 56
1002:partitions. Various builds
173:; 21 years ago
150:; 26 years ago
127:; 43 years ago
3358:
3342:Assembly language software
3216:Technical Support SuperDOS
2320:PC DOS 7 User's Guide
884:was replaced with the IBM
842:standard in version 5.02.
667:-inspired kernel featured
3259:
2763:
2699:
1995:"IBM's Personal Computer"
559:Seattle Computer Products
49:
40:
27:Computer operating system
2616:Red Hat Enterprise Linux
2557:Red Hat Enterprise Linux
2406:Red Hat Enterprise Linux
2090:"IBM PC DOS VERSION 6.1"
1073:hierarchical directories
996:Logical Block Addressing
573:and integrated with the
1263:(February–March 1982).
1039:. The updated programs
927:) moved to Austin. The
3332:Microcomputer software
3312:Disk operating systems
2916:Datapac System Manager
2747:Disk operating systems
2453:DOS/360 and successors
2270:DOS 3.30: User's Guide
2157:. 2009. Archived from
2104:"IBM PC DOS Version 7"
716:
550:
336:
281:, its successors, and
227:Command-line interface
3327:IBM operating systems
2465:OS/360 and successors
1839:; Stillmaker, Betty;
1406:. The Starman's Realm
1233:John Wiley & Sons
1069:stream-oriented files
1061:record-oriented files
781:IBM Personal System/2
769:IBM Personal System/2
714:
548:
362:operating environment
331:
279:IBM Personal Computer
275:disk operating system
1742:case as exhibit #1.)
1190:"The History of DOS"
1129:For PC DOS the
1095:List of DOS commands
1004:from 1999 up to 2003
980:Hitachi Feature Tool
880:was dropped and the
273:, is a discontinued
247:proprietary software
3076:DEC BATCH-11/DOS-11
2755:MS-DOS, IBM PC DOS,
2039:The History of OS/2
1261:Bunnell, David Hugh
982:(2.15) until 2009.
847:virtual DOS machine
828:conventional memory
824:Upper Memory Blocks
625:. Single-sided 160
579:Boca Raton, Florida
107:No longer supported
37:
3056:Concurrent DOS V60
3051:Concurrent DOS 68K
2896:Concurrent CP/M-86
2757:compatible systems
2120:Brooks, Vernon C.
1776:Comes v. Microsoft
1740:Comes v. Microsoft
976:Drive Fitness Test
751:IBM PC Convertible
717:
551:
437:September 14, 1984
283:IBM PC compatibles
3289:
3288:
2796:
2795:
2713:
2712:
2376:Operating systems
2325:IBM Corporation.
2318:IBM Corporation.
2303:Que Corporation.
2296:IBM Corporation.
2289:IBM Corporation.
2282:IBM Corporation.
2126:PC DOS Retro
1932:; Pollock, John;
1694:(Press release).
1648:(Press release).
1623:(Press release).
1598:(Press release).
1573:(Press release).
1548:(Press release).
1523:(Press release).
1500:"IBM PC DOS 3.10"
1477:(Press release).
1452:(Press release).
1427:(Press release).
953:embedded software
858:the new commands
700:IBM PC compatible
698:, the first 100%
533:
532:
517:February 28, 1995
265:), also known as
252:
251:
213:Monolithic kernel
148:/ April 1998
84:Assembly language
16:(Redirected from
3349:
3278:
3277:
3267:
3266:
2761:
2740:
2733:
2726:
2717:
2705:
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2369:
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2198:
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2100:
2094:
2093:
2086:
2080:
2075:
2069:
2066:
2060:
2054:
2048:
2046:
2041:. Archived from
2030:
2024:
2023:
2016:
2010:
2009:
2007:
2006:
1990:
1984:
1979:
1946:Petzold, Charles
1930:Petzold, Charles
1898:
1887:
1882:
1813:
1807:
1806:
1804:
1803:
1785:
1779:
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1279:
1278:
1257:
1251:
1250:
1230:
1220:
1209:
1208:
1206:
1205:
1188:Jakobsen, Remi.
1185:
1168:
1158:
1150:
1139:
1134:
1127:
1118:
1111:
1046:
1042:
1038:
1032:
1026:
937:Stac Electronics
875:
869:
863:
833:
820:High Memory Area
796:
795:
791:
788:
766:
765:
761:
758:
748:
747:
743:
740:
680:) was released.
638:
624:
618:
612:
593:
427:November 1, 1983
380:
181:
179:
174:
158:
156:
151:
135:
133:
128:
125:August 1981
54:
45:
38:
32:Operating system
21:
3357:
3356:
3352:
3351:
3350:
3348:
3347:
3346:
3292:
3291:
3290:
3285:
3255:
2994:Other platforms
2989:
2946:NetWare PalmDOS
2862:
2792:
2756:
2750:
2744:
2714:
2709:
2695:
2679:
2643:
2620:
2561:
2410:
2382:
2373:
2265:
2263:Further reading
2260:
2259:
2250:
2248:
2235:
2234:
2230:
2221:
2219:
2206:
2205:
2201:
2188:
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2178:
2177:
2173:
2164:
2162:
2149:
2148:
2144:
2135:
2133:
2119:
2118:
2111:
2102:
2101:
2097:
2088:
2087:
2083:
2078:IBM PC DOS 5.02
2076:
2072:
2067:
2063:
2055:
2051:
2032:
2031:
2027:
2018:
2017:
2013:
2004:
2002:
1992:
1991:
1987:
1960:
1950:Microsoft Press
1934:Reynolds, Aaron
1902:Zbikowski, Mark
1900:
1899:
1890:
1863:
1853:Microsoft Press
1841:Zbikowski, Mark
1837:Reynolds, Aaron
1815:
1814:
1810:
1801:
1799:
1787:
1786:
1782:
1768:
1766:
1762:
1755:
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1732:
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1644:
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1603:
1594:
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1589:
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1578:
1569:
1568:
1564:
1555:
1553:
1544:
1543:
1539:
1530:
1528:
1519:
1518:
1514:
1505:
1503:
1502:. PCjs Machines
1498:
1497:
1493:
1484:
1482:
1473:
1472:
1468:
1459:
1457:
1448:
1447:
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1318:
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1313:
1304:
1302:
1290:
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1274:
1259:
1258:
1254:
1247:
1222:
1221:
1212:
1203:
1201:
1187:
1186:
1182:
1177:
1172:
1171:
1156:
1148:
1141:Get DOS version
1137:
1132:
1128:
1121:
1112:
1108:
1103:
1081:
1053:
1044:
1040:
1034:
1028:
1022:
992:
949:
921:
901:
890:Central Point's
871:
865:
859:
855:
831:
816:
803:
793:
789:
786:
784:
763:
759:
756:
754:
745:
741:
738:
736:
709:
696:Compaq Portable
645:
634:
620:
614:
608:
591:
543:
538:
397:August 12, 1981
378:
376:Version history
359:object-oriented
311:
221:
177:
175:
172:
154:
152:
149:
131:
129:
126:
122:Initial release
70:
57:
33:
28:
23:
22:
15:
12:
11:
5:
3355:
3353:
3345:
3344:
3339:
3334:
3329:
3324:
3319:
3314:
3309:
3304:
3294:
3293:
3287:
3286:
3284:
3283:
3272:
3260:
3257:
3256:
3254:
3253:
3248:
3243:
3238:
3233:
3228:
3223:
3218:
3213:
3208:
3203:
3198:
3193:
3188:
3183:
3178:
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3163:
3158:
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3143:
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3128:
3123:
3118:
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3108:
3103:
3098:
3093:
3088:
3083:
3078:
3073:
3068:
3063:
3058:
3053:
3048:
3043:
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3028:
3023:
3018:
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2995:
2991:
2990:
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2983:
2978:
2973:
2968:
2963:
2958:
2953:
2948:
2943:
2938:
2933:
2928:
2923:
2918:
2913:
2908:
2903:
2901:Concurrent DOS
2898:
2893:
2888:
2883:
2878:
2873:
2871:
2864:
2863:
2861:
2860:
2855:
2850:
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2758:
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2751:
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2735:
2728:
2720:
2711:
2710:
2700:
2697:
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2693:
2687:
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2667:
2662:
2657:
2651:
2649:
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2641:
2636:
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2598:
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2529:
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2435:
2430:
2424:
2422:
2412:
2411:
2409:
2408:
2403:
2398:
2392:
2390:
2384:
2383:
2374:
2372:
2371:
2364:
2357:
2349:
2343:
2342:
2323:
2316:
2301:
2294:
2287:
2280:
2273:
2264:
2261:
2258:
2257:
2228:
2199:
2171:
2142:
2109:
2095:
2081:
2070:
2061:
2059:TACKtech Corp.
2049:
2045:on 2010-04-10.
2025:
2011:
1985:
1958:
1942:Letwin, Gordon
1918:McDonald, Marc
1910:Ballmer, Steve
1888:
1861:
1825:Letwin, Gordon
1808:
1791:(2007-08-08).
1780:
1744:
1722:. 1981-01-06.
1708:
1683:
1662:
1637:
1612:
1587:
1562:
1537:
1512:
1491:
1466:
1441:
1416:
1394:
1366:
1339:
1311:
1293:"CP/M Arrives"
1283:
1252:
1245:
1210:
1179:
1178:
1176:
1173:
1170:
1169:
1119:
1105:
1104:
1102:
1099:
1098:
1097:
1092:
1087:
1080:
1077:
1052:
1049:
991:
988:
948:
945:
920:
917:
900:
897:
854:
851:
815:
812:
802:
799:
733:IBM PC Network
708:
705:
657:Aaron Reynolds
653:Mark Zbikowski
644:
641:
594:". 86-DOS was
542:
539:
537:
534:
531:
530:
528:
525:
521:
520:
518:
515:
511:
510:
508:
507:April 27, 1994
505:
501:
500:
498:
495:
491:
490:
488:
485:
481:
480:
478:
475:
471:
470:
468:
465:
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431:
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421:
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418:
415:
411:
410:
408:
405:
401:
400:
398:
395:
391:
390:
387:
384:
377:
374:
310:
307:
250:
249:
241:
235:
234:
224:
222:user interface
216:
215:
210:
203:
202:
197:
193:
192:
189:
183:
182:
166:
164:Latest preview
160:
159:
143:
141:Latest release
137:
136:
123:
119:
118:
113:
109:
108:
105:
101:
100:
95:
91:
90:
81:
75:
74:
65:
59:
58:
55:
47:
46:
31:
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
3354:
3343:
3340:
3338:
3335:
3333:
3330:
3328:
3325:
3323:
3320:
3318:
3315:
3313:
3310:
3308:
3305:
3303:
3302:1981 software
3300:
3299:
3297:
3282:
3273:
3271:
3262:
3261:
3258:
3252:
3249:
3247:
3244:
3242:
3239:
3237:
3234:
3232:
3229:
3227:
3224:
3222:
3219:
3217:
3214:
3212:
3209:
3207:
3204:
3202:
3199:
3197:
3194:
3192:
3191:Sinclair QDOS
3189:
3187:
3184:
3182:
3179:
3177:
3174:
3172:
3169:
3167:
3164:
3162:
3159:
3157:
3154:
3152:
3149:
3147:
3144:
3142:
3139:
3137:
3134:
3132:
3129:
3127:
3124:
3122:
3119:
3117:
3114:
3112:
3109:
3107:
3104:
3102:
3099:
3097:
3094:
3092:
3089:
3087:
3084:
3082:
3079:
3077:
3074:
3072:
3069:
3067:
3064:
3062:
3059:
3057:
3054:
3052:
3049:
3047:
3046:Commodore DOS
3044:
3042:
3039:
3037:
3034:
3032:
3029:
3027:
3024:
3022:
3019:
3017:
3014:
3012:
3009:
3007:
3004:
3002:
2999:
2998:
2996:
2992:
2987:
2984:
2982:
2979:
2977:
2974:
2972:
2969:
2967:
2964:
2962:
2959:
2957:
2954:
2952:
2949:
2947:
2944:
2942:
2941:Multiuser DOS
2939:
2937:
2934:
2932:
2929:
2927:
2924:
2922:
2919:
2917:
2914:
2912:
2909:
2907:
2904:
2902:
2899:
2897:
2894:
2892:
2889:
2887:
2884:
2882:
2879:
2877:
2874:
2872:
2870:
2865:
2859:
2856:
2854:
2851:
2849:
2846:
2844:
2841:
2839:
2836:
2834:
2831:
2829:
2826:
2824:
2821:
2819:
2816:
2812:
2809:
2807:
2804:
2803:
2802:
2799:
2798:
2789:
2786:
2784:
2781:
2779:
2776:
2774:
2771:
2769:
2766:
2765:
2762:
2759:
2753:
2748:
2741:
2736:
2734:
2729:
2727:
2722:
2721:
2718:
2708:
2698:
2692:
2689:
2688:
2686:
2682:
2676:
2673:
2671:
2668:
2666:
2663:
2661:
2658:
2656:
2653:
2652:
2650:
2646:
2640:
2637:
2635:
2632:
2631:
2629:
2627:
2626:Point of sale
2623:
2617:
2614:
2612:
2609:
2607:
2604:
2602:
2599:
2597:
2594:
2590:
2587:
2586:
2585:
2582:
2580:
2577:
2576:
2574:
2572:
2568:
2564:
2558:
2555:
2553:
2550:
2548:
2545:
2543:
2540:
2538:
2535:
2533:
2530:
2528:
2525:
2523:
2520:
2518:
2515:
2513:
2510:
2508:
2505:
2503:
2500:
2498:
2495:
2491:
2488:
2486:
2483:
2481:
2478:
2476:
2473:
2471:
2468:
2467:
2466:
2463:
2459:
2456:
2455:
2454:
2451:
2449:
2446:
2444:
2441:
2439:
2436:
2434:
2431:
2429:
2426:
2425:
2423:
2421:
2417:
2413:
2407:
2404:
2402:
2399:
2397:
2394:
2393:
2391:
2389:
2388:Supercomputer
2385:
2381:
2377:
2370:
2365:
2363:
2358:
2356:
2351:
2350:
2347:
2340:
2339:0-7384-0677-5
2336:
2332:
2328:
2324:
2321:
2317:
2314:
2313:0-7897-0276-2
2310:
2306:
2302:
2299:
2295:
2292:
2288:
2285:
2281:
2278:
2274:
2271:
2267:
2266:
2262:
2247:on 2014-02-13
2246:
2242:
2238:
2232:
2229:
2218:on 2016-03-11
2217:
2213:
2209:
2203:
2200:
2196:
2185:
2181:
2175:
2172:
2161:on 2014-03-04
2160:
2156:
2152:
2146:
2143:
2131:
2127:
2123:
2116:
2114:
2110:
2106:. 1995-02-28.
2105:
2099:
2096:
2092:. 1993-06-29.
2091:
2085:
2082:
2079:
2074:
2071:
2065:
2062:
2058:
2053:
2050:
2044:
2040:
2036:
2029:
2026:
2021:
2015:
2012:
2000:
1996:
1989:
1986:
1982:
1977:
1973:
1969:
1965:
1961:
1959:1-55615-049-0
1955:
1951:
1947:
1943:
1939:
1935:
1931:
1927:
1926:Paterson, Tim
1923:
1919:
1915:
1911:
1907:
1903:
1897:
1895:
1893:
1889:
1885:
1880:
1876:
1872:
1868:
1864:
1862:0-914845-69-1
1858:
1854:
1850:
1846:
1842:
1838:
1834:
1833:Paterson, Tim
1830:
1826:
1822:
1818:
1812:
1809:
1798:
1797:DosMan Drivel
1794:
1790:
1789:Paterson, Tim
1784:
1781:
1777:
1765:on 2014-09-05
1761:
1754:
1748:
1745:
1741:
1725:
1718:
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1697:
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1687:
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1597:
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1572:
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1547:
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1522:
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1513:
1501:
1495:
1492:
1480:
1476:
1470:
1467:
1455:
1451:
1445:
1442:
1430:
1426:
1420:
1417:
1405:
1398:
1395:
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1376:
1370:
1367:
1355:
1354:
1349:
1343:
1340:
1328:
1327:
1322:
1315:
1312:
1300:
1299:
1294:
1287:
1284:
1272:
1271:
1266:
1262:
1256:
1253:
1248:
1246:0-471-56886-4
1242:
1238:
1234:
1229:
1228:
1219:
1217:
1215:
1211:
1199:
1195:
1191:
1184:
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487:June 11, 1991
486:
483:
482:
479:
477:July 19, 1988
476:
473:
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469:
467:April 2, 1987
466:
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459:
457:April 2, 1986
456:
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447:April 2, 1985
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19:
3317:DOS variants
3066:Cromemco DOS
3021:Apple ProDOS
2817:
2691:Fedora Linux
2660:Workplace OS
2583:
2517:System/88 OS
2331:IBM Redbooks
2319:
2304:
2297:
2290:
2283:
2276:
2269:
2249:. Retrieved
2245:the original
2231:
2220:. Retrieved
2216:the original
2202:
2193:
2187:. Retrieved
2174:
2163:. Retrieved
2159:the original
2145:
2134:. Retrieved
2125:
2098:
2084:
2073:
2064:
2052:
2043:the original
2038:
2028:
2014:
2003:. Retrieved
1998:
1988:
1937:
1844:
1811:
1800:. Retrieved
1796:
1783:
1767:. Retrieved
1760:the original
1747:
1731:. Retrieved
1711:
1700:. Retrieved
1698:. 1998-05-26
1686:
1675:. Retrieved
1665:
1654:. Retrieved
1652:. 1994-04-27
1640:
1629:. Retrieved
1627:. 1993-06-29
1615:
1604:. Retrieved
1602:. 1991-06-11
1590:
1579:. Retrieved
1577:. 1988-07-19
1565:
1554:. Retrieved
1552:. 1987-04-02
1540:
1529:. Retrieved
1527:. 1986-04-02
1515:
1504:. Retrieved
1494:
1483:. Retrieved
1481:. 1984-08-14
1469:
1458:. Retrieved
1456:. 1983-11-01
1444:
1433:. Retrieved
1431:. 1983-03-08
1419:
1408:. Retrieved
1397:
1386:. Retrieved
1384:. 1981-08-12
1369:
1358:. Retrieved
1351:
1342:
1331:. Retrieved
1329:. p. 36
1324:
1314:
1303:. Retrieved
1301:. p. 43
1296:
1286:
1275:. Retrieved
1273:. p. 16
1268:
1255:
1226:
1202:. Retrieved
1193:
1183:
1140:
1109:
1054:
1020:
1008:Norton Ghost
993:
979:
975:
970:
966:
959:of 7.0 with
950:
925:IBM ViaVoice
922:
902:
856:
844:
837:
817:
804:
773:
718:
689:
682:
669:file handles
646:
631:
585:
583:
571:floppy disks
567:Tim Paterson
552:
527:May 29, 1998
386:Release date
370:multitasking
351:
340:
337:
332:
324:
312:
270:
266:
262:
254:
253:
187:Available in
112:Source model
29:
3211:SpartaDOS X
2571:workstation
2001:. p. 6
1922:O'Rear, Bob
1914:Gates, Bill
1906:Allen, Paul
1849:Socha, John
1829:O'Rear, Bob
1821:Gates, Bill
1817:Allen, Paul
1353:PC Magazine
1298:PC Magazine
1270:PC Magazine
1235:. pp.
1155:instead of
1115:COMMAND.COM
1036:COMMAND.COM
978:(4.15) and
947:PC DOS 2000
721:Intel 80286
622:COMMAND.COM
407:May 7, 1982
389:References
366:Windows 2.0
355:IBM TopView
231:COMMAND.COM
146:PC DOS 2000
3296:Categories
2961:PC-MOS/386
2951:Novell DOS
2848:SISNE plus
2838:Novell DOS
2818:IBM PC DOS
2778:Comparison
2251:2014-02-13
2222:2014-02-13
2210:. 1.3.07.
2189:2014-02-11
2165:2014-02-13
2136:2014-01-10
2005:2013-10-18
1802:2014-02-13
1769:2013-04-01
1733:2013-04-01
1702:2023-02-08
1677:2023-02-08
1656:2023-02-08
1631:2023-02-08
1606:2023-02-08
1581:2023-02-08
1556:2023-02-08
1531:2023-02-08
1506:2023-02-08
1485:2023-02-08
1460:2023-02-08
1435:2023-02-08
1410:2023-02-08
1388:2023-02-08
1360:2017-10-11
1333:2016-07-12
1305:2016-07-12
1277:2016-07-12
1204:2017-11-10
1175:References
1030:IBMDOS.COM
1024:IBMBIO.COM
998:(LBA) and
990:PC DOS 7.1
957:slipstream
899:PC DOS 6.3
853:PC DOS 6.1
822:(HMA) and
801:PC DOS 4.x
707:PC DOS 3.x
678:Windows NT
676:(based on
674:Windows XP
649:Paul Allen
643:PC DOS 2.x
563:Bob O'Rear
541:PC DOS 1.x
464:3.3 (3.30)
454:3.2 (3.20)
444:3.1 (3.10)
424:2.1 (2.10)
404:1.1 (1.10)
320:Bill Gates
314:standard.
255:IBM PC DOS
244:Commercial
169:PC DOS 7.1
79:Written in
36:IBM PC DOS
18:PC DOS 3.3
3206:SpartaDOS
3161:NewDos/80
3036:Atari TOS
3031:Atari DOS
3026:Apple SOS
3016:Apple DOS
2420:mainframe
1879:635600205
1161:Microsoft
1136:function
909:SuperStor
808:DOS Shell
771:in 1987.
725:IBM PC/AT
723:-derived
690:In 1983,
636:DEBUG.EXE
596:rebranded
327:Jack Sams
316:Microsoft
291:Microsoft
196:Platforms
94:OS family
68:Microsoft
63:Developer
3270:Category
3236:TurboDOS
3201:SmartDOS
3141:MicroDOS
3001:AmigaDOS
2986:TurboDOS
2981:Towns OS
2926:K8918-OS
2921:DOS Plus
2811:MS-DOS 7
2783:Commands
2773:Timeline
2707:Category
2670:Trillian
2665:Monterey
2655:Taligent
2648:Projects
2579:Textpack
2333:, 1995.
2241:Symantec
2130:Archived
1976:16581341
1968:87-21452
1724:Archived
1198:Archived
1143:returns
1131:DOS INT
1079:See also
1045:FORMAT32
1012:Symantec
984:ThinkPad
919:PC DOS 7
893:PC Tools
886:E Editor
814:PC DOS 5
729:megabyte
685:IBM PCjr
627:kilobyte
536:Versions
277:for the
3251:Z80-RIO
3221:Top-DOS
3176:RealDOS
3151:MSX-DOS
3086:DOS/360
3081:DIP DOS
3071:CSI-DOS
2976:SCP1700
2966:REAL/32
2956:OpenDOS
2936:MP/M-86
2906:CP/M-86
2881:4690 OS
2876:4680 OS
2858:FreeDOS
2853:PTS-DOS
2843:ROM-DOS
2684:Related
2639:4690 OS
2634:4680 OS
2567:Desktop
2497:VM line
2443:TSS/360
2438:TOS/360
2433:BOS/360
1871:86-8640
1117:outputs
1041:FDISK32
972:Hitachi
941:STACKER
913:Addstor
905:PowerPC
867:DELTREE
792:⁄
762:⁄
744:⁄
600:CP/M-80
383:Version
343:CP/M-86
309:History
271:IBM DOS
259:acronym
239:License
220:Default
176: (
155:1998-04
153: (
132:1981-08
130: (
3279:
3268:
3231:TRSDOS
3226:TR-DOS
3126:iS-DOS
3116:IDEDOS
3111:GEMDOS
3091:DOS XL
3041:BW-DOS
3006:AMSDOS
2931:FlexOS
2886:86-DOS
2867:Other
2828:DR-DOS
2801:MS-DOS
2584:PC DOS
2532:zLinux
2485:OS/390
2470:OS/VS1
2416:Server
2337:
2311:
2195:prompt
2184:Lenovo
1974:
1966:
1956:
1877:
1869:
1859:
1243:
1033:, and
1016:MS-DOS
878:QBasic
870:, and
861:CHOICE
692:Compaq
661:IBM XT
555:86-DOS
368:) and
295:MS-DOS
267:PC DOS
207:Kernel
171:/ 2003
3246:Z-DOS
3181:SB-80
3171:PTDOS
3156:MyDOS
3121:IMDOS
3011:ANDOS
2971:SB-86
2833:H-DOS
2823:DOS/V
2788:Games
2749:(DOS)
2596:PC/IX
2589:DOS/V
2552:SRTOS
2522:IBM i
2428:IBSYS
1763:(PDF)
1756:(PDF)
1727:(PDF)
1720:(PDF)
1378:(PDF)
1147:code
1101:Notes
1010:from
1000:FAT32
605:FAT12
557:from
3281:List
3241:UDOS
3196:RDOS
3166:OS/M
3146:MP/M
3136:MDOS
3131:ISIS
3106:FLEX
3096:Edos
3061:CP/M
2911:CP/K
2891:ADOS
2606:OS/2
2542:DPPX
2537:DPCX
2490:z/OS
2335:ISBN
2309:ISBN
2155:HGST
1999:BYTE
1972:OCLC
1964:LCCN
1954:ISBN
1875:OCLC
1867:LCCN
1857:ISBN
1326:Byte
1241:ISBN
1165:REXX
1159:for
1151:for
1071:and
1065:CICS
1043:and
929:REXX
873:MOVE
777:OS/2
665:Unix
655:and
633:The
616:TIME
613:and
610:DATE
587:Byte
575:BIOS
524:2000
261:for
257:(an
209:type
178:2003
3186:SCP
3101:EOS
2869:x86
2768:API
2675:K42
2611:AOS
2601:AIX
2547:SSP
2527:AIX
2512:CPF
2507:TPF
2502:ACP
2480:MVS
2475:SVS
2458:VSE
2448:RAX
2401:CNK
2396:INK
2380:IBM
2378:by
2212:IBM
1696:IBM
1650:IBM
1625:IBM
1600:IBM
1575:IBM
1550:IBM
1525:IBM
1479:IBM
1454:IBM
1429:IBM
1382:IBM
1237:190
1157:FFh
1153:IBM
1149:00h
1145:OEM
1138:30h
1133:21h
961:Y2K
933:XDF
840:APM
514:7.0
504:6.3
494:6.1
484:5.0
474:4.0
434:3.0
414:2.0
394:1.0
329::
299:DOS
287:IBM
269:or
200:x86
98:DOS
72:IBM
3298::
2569:,
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2239:.
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