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List of IBM Personal Computer models

From Wikipedia, the free encyclopedia

The original IBM Personal Computer, with monitor and keyboard

TheIBM Personal Computer, commonly known as the IBM PC, spanned multiple models in its first generation (including thePCjr, thePortable PC, theXT, theAT, theConvertible, and the/370 systems, among others), from 1981 to 1987. It eventually gave way to many splintering product lines after IBM introduced thePersonal System/2 in April 1987.

Notes

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Legend
  ISA, 8-bit
  ISA, 16-bit
  Other

Models

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This list isincomplete; you can help byadding missing items.(September 2023)

Original line

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IBM Personal Computer AT models
Type
IBMP/N
Date announcedDate withdrawnBusNo. of slotsNo. of baysProcessor
Clock speed
(MHz)
Stock onboard RAM
(KB)
Maximum onboard RAM
(KB)
FDDHDDNotesRef(s).
Personal Computer
5150-001
August 1981March 1983ISA, 8-bit52Intel 80884.7716 KB64 KBnonenoneDiskless model; only means of data storage is throughIBM Cassette BASIC[1]: 1 
[2]: 167, 1050 
[3]
Personal Computer
5150-003
August 1981March 1983ISA, 8-bit52Intel 80884.7748 KB64 KB160 KBnoneSingle-sided, double-density floppy disk drive[1]: 1 
[4]: 47 
[2]: 167, 1050 
[3]
Personal Computer
5150-013
UnknownUnknownISA, 8-bit52Intel 80884.77UnknownUnknownUnknownUnknown [5]: 228 
Personal Computer
5150-014
UnknownMarch 1983ISA, 8-bit52Intel 80884.7764 KB64 KB160 KBnone[6]
[3]
[7]: 11-15 
Personal Computer
5150-064
UnknownMarch 1983ISA, 8-bit52Intel 80884.7764 KB64 KB320 KBnone[6]
[3]: 11-15 
Personal Computer
5150-074
UnknownMarch 1983ISA, 8-bit52Intel 80884.7764 KB64 KBtwo 320 KBnone[6]
[3]: 11-15 
Personal Computer
5150-X14
UnknownMarch 1983ISA, 8-bit52Intel 80884.7764 KB64 KB160 KBnoneShipped without keyboard; includes adapter for integration withIBM 3278 terminal systems[6]
[8]
[3]: 11-15 
Personal Computer
5150-X64
UnknownMarch 1983ISA, 8-bit52Intel 80884.7764 KB64 KB320 KBnoneShipped without keyboard; includes adapter for integration withIBM 3278 terminal systems[6]
[8]
[3]: 11-15 
Personal Computer
5150-X74
UnknownMarch 1983ISA, 8-bit52Intel 80884.7764 KB64 KBtwo 320 KBnoneShipped without keyboard; includes adapter for integration withIBM 3278 terminal systems[6]
[8]
[3]: 11-15 
Personal Computer
5150-114
UnknownJune 1984ISA, 8-bit52Intel 80884.7764 KB256 KB160 KBnone [5]: 228 
[8]
[9]
[10]
Personal Computer
5150-164
UnknownJune 1984ISA, 8-bit52Intel 80884.7764 KB256 KB320 KBnone [5]: 228 
[8]
[9]
[10]
Personal Computer
5150-174
UnknownJune 1984ISA, 8-bit52Intel 80884.7764 KB256 KBtwo 320 KBnone [5]: 236 
[8]
[10]
Personal Computer
5150-104
June 1984April 1987ISA, 8-bit52Intel 80884.7764 KB256 KBnonenoneDiskless model; only means of data storage is throughIBM Cassette BASIC[5]: 228 
[8]
[9]
[6]: 11-10 
[10]
Personal Computer
5150-166
June 1984April 1987ISA, 8-bit52Intel 80884.77256 KB256 KB360 KBnone[5]: 236 
[11]
[10]
Personal Computer
5150-176
June 1984April 1987ISA, 8-bit52Intel 80884.77256 KB256 KBtwo 360 KBnone [5]: 236 
[11]
[10]
Personal Computer
5150-X66
June 1984December 1985ISA, 8-bit52Intel 80884.77256 KB256 KB360 KBnoneShipped without keyboard[5]: 236 
Personal Computer
5150-X76
June 1984December 1985ISA, 8-bit52Intel 80884.77256 KB256 KBtwo 360 KBnoneShipped without keyboard[5]: 236 
Personal Computer XT
5160-087
March 1983June 1984ISA, 8-bit82Intel 80884.77128 KB640 KB360 KB10 MB [5]: 236 
[12]
[2]: 1068 
Personal Computer XT
5160-086
June 1984June 1987ISA, 8-bit82Intel 80884.77256 KB640 KB360 KB10 MB [5]: 236 
[11]
[13]
[14]
Personal Computer XT
5160-068
April 1985June 1987ISA, 8-bit82Intel 80884.77256 KB640 KB360 KBnone [5]: 236 
[2]: 1068 
[15]
[13]
[14]
Personal Computer XT
5160-078
April 1985June 1987ISA, 8-bit82Intel 80884.77256 KB640 KBtwo 360 KBnone [5]: 236 
[2]: 1068 
[15]
[13]
[14]
Personal Computer XT
5160-088
April 1986June 1987ISA, 8-bit82Intel 80884.77512 KB640 KB360 KB20 MBShipped with original IBM PC "Model F" keyboard[5]: 236 
[16]
[13]
[14]
Personal Computer XT
5160-089
April 1986June 1987ISA, 8-bit82Intel 80884.77512 KB640 KB360 KB20 MBShipped with Enhanced Keyboard[5]: 236 
[16]
[13]
[14]
Personal Computer XT
5160-267
April 1986June 1987ISA, 8-bit82Intel 80884.77256 KB640 KB360 KBnoneShipped with original IBM PC "Model F" keyboard[5]: 236 
[16]
[13]
[14]
Personal Computer XT
5160-268
April 1986June 1987ISA, 8-bit82Intel 80884.77256 KB640 KB360 KBnoneShipped with Enhanced Keyboard[5]: 236 
[16]
Personal Computer XT
5160-277
April 1986June 1987ISA, 8-bit82Intel 80884.77256 KB640 KBtwo 360 KBnoneShipped with original IBM PC "Model F" keyboard[16]
Personal Computer XT
5160-278
April 1986June 1987ISA, 8-bit82Intel 80884.77256 KB640 KBtwo 360 KBnoneShipped with Enhanced Keyboard[5]: 236 
[16]
3270 PC
5271-000
UnknownJuly 1987ISA, 8-bit82Intel 80884.77256 KB640 KB360 KBnoneWithout printer adapter, fixed disk adapter, and keyboard[17]
[18]
3270 PC
5271-002
October 1983July 1987ISA, 8-bit82Intel 80884.77256 KB640 KB360 KBnoneWithout printer adapter and fixed disk adapter[5]: 49 
[11]
[19]: 10 
[18]
3270 PC
5271-004
October 1983July 1987ISA, 8-bit82Intel 80884.77320 KB640 KB360 KBnoneWithout fixed disk adapter; stock onboard RAM increased to 384 KB in June 1984[5]: 49 
[11]
[19]: 10 
[18]
3270 PC
5271-006
October 1983July 1987ISA, 8-bit82Intel 80884.77320 KB640 KB360 KB10 MBWith fixed disk adapter; stock onboard RAM increased to 384 KB in June 1984[5]: 49 
[11]
[19]: 10 
[18]
Personal Computer XT/370
5160-568
October 1984April 1987ISA, 8-bit82Intel 80884.77256 KB640 KB360 KBnone[5]: 236 
[19]
[20]
Personal Computer XT/370
5160-588
October 1984April 1987ISA, 8-bit82Intel 80884.77256 KB640 KB360 KB10 MB[5]: 236 
[19]
[20]
Personal Computer XT/370
5160-589
October 1984April 1987ISA, 8-bit82Intel 80884.77256 KB640 KB360 KB10 MB[5]: 236 
[20]
PCjr
4860-004
November 1983March 1985CustomN/aN/aIntel 80884.7764 KB128 KBnonenone [21]
[22]
PCjr
4860-067
November 1983March 1985CustomN/aN/aIntel 80884.77128 KB128 KB360 KBnone [21]
[22]
Portable Personal Computer
5155-068
February 1984June 1984ISA, 8-bit82Intel 80884.77256 KB512 KB360 KBnone[8]
Portable Personal Computer
5155-076
June 1984UnknownISA, 8-bit82Intel 80884.77256 KB512 KBtwo 360 KBnone[5]: 228 
[23]
Personal Computer AT
5170-068
August 1984June 1987ISA, 16-bit83Intel 802866256 KB512 KB1.2 MBnone [5]: 49 
[24]
[25]
Personal Computer AT
5170-099
August 1984June 1987ISA, 16-bit83Intel 802866512 KB512 KB1.2 MB20 MB [5]: 236 
[24]
[25]
Personal Computer AT
5170-239
October 1985September 1986ISA, 16-bit83Intel 802866512 KB512 KB1.2 MB30 MB [5]: 236 
[26]
[27]
Personal Computer AT
5170-839
January 1986June 1987ISA, 16-bit83Intel 802866512 KB512 KB1.2 MBtwo 30 MBIncludes controllers for theIBM 4680 Store System[5]: 236 
[28]
[25]
Personal Computer AT
5170-899
January 1986June 1987ISA, 16-bit83Intel 802866512 KB512 KB1.2 MBtwo 20 MBIncludes controllers for theIBM 4680 Store System[5]: 236 
[28]
[25]
Personal Computer AT
5170-319
April 1986June 1987ISA, 16-bit83Intel 802868512 KB512 KB1.2 MB30 MB [5]: 236 
[29]
[25]
Personal Computer AT
5170-339
April 1986July 1987ISA, 16-bit83Intel 802868512 KB512 KB1.2 MB30 MBShipped with Enhanced Keyboard[5]: 236 
[29]
[25]
Personal Computer AT
5171-168
October 1986June 1987ISA, 16-bit83Intel 802868512 KB512 KB1.2 MBnoneBuilt toTEMPEST specifications[5]: 64 
[25]
Personal Computer AT
5171-339
October 1986July 1987ISA, 16-bit83Intel 802868512 KB512 KB1.2 MB30 MBBuilt toTEMPEST specifications[5]: 64 
[25]
Personal Computer AT/370
5170-599
October 1984April 1987ISA, 16-bit83Intel 802866512 KB512 KB1.2 MB20 MB[5]: 202 
[20]
Personal Computer AT/370
5170-739
October 1985April 1987ISA, 16-bit83Intel 802866512 KB512 KB1.2 MB30 MB [5]: 202 
[30]
[31]
[20]
Personal Computer AT/370
5170-919
April 1986April 1987ISA, 16-bit83Intel 802866512 KB512 KB1.2 MB30 MB1 MB total RAM (peripheral)[5]: 57 
[32]
[20]
Personal Computer AT/370
5170-939
April 1986April 1987ISA, 16-bit83Intel 802866512 KB512 KB1.2 MB30 MB1 MB total RAM (peripheral); shipped with Enhanced Keyboard[5]: 57 
[32]
[20]
PC Convertible
5140-002
April 1986UnknownISA, 8-bit (proprietary)N/aN/aIntel 80884.77256 KB512 KBtwo 720KnoneApplication bundle
PC Convertible
5140-022
April 1986UnknownISA, 8-bit (proprietary)N/aN/aIntel 80884.77256 KB512 KBtwo 720Knone
Personal Computer XT Model 286
5162-286
September 1986October 1987ISA, 16-bit82Intel 802866640 KB640 KB1.2 MB20 MB [5]: 48 
[27]
[14]
Industrial Computer 5531
5531-001
October 1983UnknownISA, 8-bit83Intel 80884.77128 KB640 KB360 KB10 MBIndustrial version of the IBM PC XT[33]
[34]
Industrial Computer 5531
5531-011
April 1984UnknownISA, 8-bit83Intel 80884.77256 KB640 KB1.2 MBnoneIndustrial version of the IBM PC XT[33]
[34]
[35]
Industrial Computer 5531
5531-021
May 1985UnknownISA, 8-bit83Intel 80884.77256 KB640 KB1.2 MB20 MBIndustrial version of the IBM PC XT[33]
[34]
7531 Industrial Computer
7531-041
May 1985UnknownISA, 16-bit83Intel 802866512 KB1 MBUnknownUnknownIndustrial version of the IBM PC AT,tower form-factor
7532 Industrial Computer
7532-041
May 1985UnknownISA, 16-bit83Intel 802866512 KB1 MBUnknownUnknownIndustrial version of the IBM PC AT,19-inch rack-mountable form factor
Industrial Computer 7552
7552-040
October 1986UnknownISA, 16-bit
MCA, 16-bit(undocumented)		8(modules, 7 fillable)3(as modules)Intel 80286104 MBUnknownnonenoneAlso known as "Gearbox", rack-mountable ruggedized modular industrial computer, hybrid MCA and ISA with compromised ISA signal lines—notable for introducing the (16-bit)Micro Channel architecture half a year before the announcement of thePS/2 line in April 1987[36]
[37]
[38]
[39]
Industrial Computer 7552
7552-140
October 1986UnknownISA, 16-bit
MCA, 16-bit(undocumented)		8(modules, 7 fillable)3(as modules)Intel 80286104 MBUnknownone 1.44 MB(as a module)20 MB(as a module, 40 MB as two identical modules)Also known as "Gearbox", rack-mountable ruggedized modular industrial computer, hybrid MCA and ISA with compromised ISA signal lines—notable for introducing the (16-bit)Micro Channel architecture half a year before the announcement of thePS/2 line in April 1987[36]
[37]
[38]
[39]

Successor lines

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Timeline

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Timeline of the IBM Personal Computer
Asterisk (*) denotes a model released in Japan only

See also

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References

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General references

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Footnotes

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  1. ^abHogan, Thom (September 14, 1981)."IBM Announces New Microcomputer System".InfoWorld.3 (18). IDG Publications: 1, 14 – via Google Books.
  2. ^abcdeMueller, Scott (1994).Upgrading and Repairing PCs (4th ed.). Que.ISBN 9781565299320 – via the Internet Archive.
  3. ^abcdefghSomerson, Paul (April 1983)."Revised Figures".PC Magazine.1 (12). Ziff-Davis: 102 – via Google Books.
  4. ^Ditela, Steve (December 14, 1981)."Wizard in Your Home".New York.14 (49):46–72 – via Google Books.
  5. ^abcdefghijklmnopqrstuvwxyzaaabacadaeafagahaiajakalamIBM Personal System/2 and IBM Personal Computer Product Reference(PDF) (4.0 ed.). International Business Machines Corporation. April 6, 1987 – viaBitsavers.
  6. ^abcdefgMachine Preface. IBM Information Systems Group. November 1983. p. MP 1.4 – via the Internet Archive.
  7. ^A Guide to IBM Personal Computers(PDF). International Business Machines Corporation. April 1985 – via Ardent Tool.
  8. ^abcdefgh"IBM PC 1, PC/XT & Portable PC Personal Computers".Microcomputer Systems.3. Data Decisions: 13. 1984 – via the Internet Archive.
  9. ^abcIBM Personal Computer Hardware Prices(PDF). IBM Product Center. June 1984. p. obverse – via the Vintage Technology Digital Archive.
  10. ^abcdefStaff writer (June 12, 1984)."IBM Cuts Prices, Ups RAM".PC Week.1 (23). Ziff-Davis: 1 – via Gale.A company spokesman said the boost in memory [to 256 KB] was needed to accommodate the demand for more sophisticated applications, such a windowing. He added that although the 64K-byte systems will remain in production, the company eventually plans to phase them out.
  11. ^abcdefStaff writer (June 11, 1984)."IBM Slashes PC Prices, Adds Memory; Drops 64KB".Electronic News.30 (1501). Sage Publications: 24 – via Gale.
  12. ^Sandler, Corey (April 1983)."IBM Drops the First Shoe".PC Magazine.1 (12). Ziff-Davis:90–102 – via Google Books.
  13. ^abcdefSanger, David E. (June 24, 1987)."I.B.M. Optimistic on Newest PC's".The New York Times: D4.ProQuest 426534977.
  14. ^abcdefgBridges, Linda; Laura Brennan; Jim Forbes; Bruce Stephen (July 7, 1987)."PC managers regrouping after XT, AT closeout".PC Week.4 (27). Ziff-Davis: 4 – via Gale.IBM's recent announcement that it will formally discontinue its PC XT line and eventually phase out its PC AT came as no surprise to many corporate users. [...] William Lowe, president of IBM's Entry Systems Division in Boca Raton, Fla., told Wall Street analysts on June 30 that the only remaining XT, the XT 286, will be discontinued within three months and that IBM is working with dealers and large accounts to determine how many more ATs it will make to fill orders.
  15. ^abSager, Ira (April 8, 1985)."IBM moves to reduce PC XT inventories".Electronic News.31. Sage Publications: 24et seq – via Gale.The new floppy disk-based versions of the PC XT basically just strips the 10MB hard disk from the earlier unit. The machines come with base memory of 256KB and are available in either single or dual 360 KB diskette versions. A single diskette unit with keyboard and 256 KB of main memory is priced at $2,270, while the dual diskette version is priced at $2,570. A fully configured PC XT with 256 KB of RAM, a 360 KB diskette, keyboard, monochrome monitor and adapter, and operating system comes in at about $2,860.
  16. ^abcdefWhitmore, Sam (April 8, 1986)."Product blitz may signal more aggressive IBM: firm ups ante for the makers of compatibles".PC Week.3 (14). Ziff-Davis: 1 – via Gale.
  17. ^"IBM 3770 Family Batch Communications Terminals"(PDF).Distributed Processing & Intelligent Terminals. Datapro: C21-491-101. January 1984 – via Bitsavers.org.
  18. ^abcdLibes, Sol (February 28, 1984)."3270 emulation board makers, beware! IBM is aiming at you".PC Week.1 (28). Ziff-Davis: 25et seq – via Gale.
  19. ^abcdeHenkel, T. (October 24, 1983)."IBM Takes Wraps off Two Micros Capable of Accessing Mainframes".Computerworld.17 (43). IDG Publications: 1, 10 – via Google Books.
  20. ^abcdefg"IBM Gives Up on the Personal XT/, AT/370".Computer Business Review. New Statesman Media Group. April 13, 1987. Archived fromthe original on September 20, 2023.
  21. ^ab"IBM PCjr".Microcomputer Systems.3. Data Decisions: 6. 1984 – via the Internet Archive.
  22. ^abCastro, Janice; Bob Buderi; Thomas McCarroll (April 1, 1985)."Kicking Junior Out of the Family".Time. Time Inc. Archived fromthe original on June 25, 2009. RetrievedFebruary 23, 2011.
  23. ^Staff writer (June 18, 1984)."IBM cuts micro prices".Computerworld.XVIII (25). IDG Publications: 8 – via Google Books.
  24. ^abWhitmore, Sam (August 14, 1984)."IBM's New Generation: The PC AT: AT Hikes CPU Speed Sixfold, Memory Fivefold".PC Week.1 (32). Ziff-Davis: 1 – via Gale.The IBM PC AT Base Model 68, with one 1.2-megabyte floppy-disk drive, will sell for $3,995, according to a source close to IBM. Model 99, with a 1.2-megabyte floppy-disk drive and a 20-megabyte hard disk, will cost $5,795. Both models will use a 6-MHz 80286 microprocessor.
  25. ^abcdefghAbruzzese, George (June 29, 1987)."IBM Plans to Terminate Remainder of PC Line".InfoWorld.9 (26). IDG Publications: 1, 69 – via Google Books.
  26. ^Kuzbyt, Bob (October 7, 1985)."IBM introduces 30-MB 5.25-inch Winchester disk drive for AT".Electronic News.31. Sage Publications: 26 – via Gale.
  27. ^abRistelhueber, Robert; Ira Sager (September 8, 1986)."4 PC suppliers add 286 units in battle with compatibles".Electronic News.32. Sage Publications: 1et seq – via Gale.
  28. ^abWhitmore, Sam (January 14, 1986)."IBM Debuts PC AT-Based Point-of-Sale Retail System".PC Week.3 (2). Ziff-Davis: 8 – via Gale.
  29. ^abWhitmore, Sam (April 1, 1986)."IBM meetings said to key on new products".PC Week.3 (13). Ziff-Davis: 1 – via Gale.
  30. ^Sandker, C. (October 8, 1985)."IBM Delivers New PC AT Featuring 30M-Byte Disk: Sets a Price Tag of $5,995".PC Week.2 (40). Ziff-Davis: 1 – via Gale.
  31. ^"Desktop Systems".PC Tech Journal.4 (13). Ziff-Davis: 69. 1987 – via the Internet Archive.
  32. ^abKennedy, Don (April 2, 1986)."IBM has boosted the processor speed and storage capacity of its personal computer models". PR Newswire. p. NYPR14C – via Gale.
  33. ^abcStaff writer (April 25, 1984)."Industrial-strength PC XT".UPI.com. United Press International. Archived fromthe original on September 20, 2023.
  34. ^abc"IBM 7531 Industrial Computer" (Announcement letter). International Business Machines Corporation. May 21, 1985. 185-053.
  35. ^"IBM unveils entry-level 5531 model".Computerworld.XIX (17). IDG Publications: 48. April 29, 1985 – via Google Books.
  36. ^ab"IBM 7552 Industrial Computer Model 540" (Announcement Letter). Industrial Business Machines Corporation. November 3, 1987. RetrievedJanuary 19, 2025.
  37. ^abKono, M. E. (December 1992).Surface Computer System Architecture for the Advanced Unmanned Search System (AUSS)(PDF). Naval Command, Control and Ocean Surveillance Center. p. 3 – via Ardent Tool.
  38. ^abWallace, Bob (October 20, 1986)."IBM uncloaks industrial micro as network gateway".Network World.3 (33). IDG Publications – via Google Books.
  39. ^abCleaveland, Peter (April 21, 1987). "Low-cost, flexible microcomputers get jobs in factories".Instrumentation & Control Systems.61 (5). Reed Business Information Enterprise: 31 – via Gale OneFile.IBM doesn't advertise the PS/2 as a factory-floor machine, yet the PS/2's backplane bus structure, Micro Channel, appeared in a factory-floor computer before the PS/2 itself came on the market. People who examined the IBM 7552 Gearbox, ostensibly a factory-hardened version of the AT, notice something odd about the unit's bus: It had more bus lines than could be accounted for by the AT bus. The extra lines turned out to be the 16-bit Micro Channel. Nobody at IBM said anything about it at the time, because PS/2 hadn't yet been introduced.
Desktop
and all-in-one
Single models
Series
pre-PS/2
PS/2
(list of models)
post-PS/2
Portable
Laptop
pre-ThinkPad
ThinkPad
Handheld
Prototypes
Video hardware
Related
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