浙江省“编外人员”被监察留置第一案：留置不分编内外
百度 平时也听父母的话，好好学习。
The original IBM Personal Computer, with monitor and keyboard
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The IBM Personal Computer, commonly known as the IBM PC, spanned multiple models in its first generation (including the PCjr, the Portable PC, the XT, the AT, the Convertible, and the /370 systems, among others), from 1981 to 1987. It eventually gave way to many splintering product lines after IBM introduced the Personal System/2 in April 1987.
Notes
[edit]- Legend
ISA, 8-bit
ISA, 16-bit
Other
Models
[edit] |
Original line
[edit]| Type | IBM P/N
|
Date announced | Date withdrawn | Bus | No. of slots | No. of bays | Processor | Clock speed
(MHz) |
Stock onboard RAM
(KB) |
Maximum onboard RAM
(KB) |
FDD | HDD | Notes | Ref(s). |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Personal Computer | 5150-001
|
August 1981 | March 1983 | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 16 KB | 64 KB | none | none | Diskless model; only means of data storage is through IBM Cassette BASIC | [1]:?1? [2]:?167,?1050? [3] |
| Personal Computer | 5150-003
|
August 1981 | March 1983 | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 48 KB | 64 KB | 160 KB | none | Single-sided, double-density floppy disk drive | [1]:?1? [4]:?47? [2]:?167,?1050? [3] |
| Personal Computer | 5150-013
|
Un-known | Un-known | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | Un-known | Un-known | Un-known | Un-known | [5]:?228? | |
| Personal Computer | 5150-014
|
Un-known | March 1983 | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 64 KB | 160 KB | none | [6] [3] [7]:?11-15? | |
| Personal Computer | 5150-064
|
Un-known | March 1983 | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 64 KB | 320 KB | none | [6] [3]:?11-15? | |
| Personal Computer | 5150-074
|
Un-known | March 1983 | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 64 KB | two 320 KB | none | [6] [3]:?11-15? | |
| Personal Computer | 5150-X14
|
Un-known | March 1983 | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 64 KB | 160 KB | none | Shipped without keyboard; includes adapter for integration with IBM 3278 terminal systems | [6] [8] [3]:?11-15? |
| Personal Computer | 5150-X64
|
Un-known | March 1983 | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 64 KB | 320 KB | none | Shipped without keyboard; includes adapter for integration with IBM 3278 terminal systems | [6] [8] [3]:?11-15? |
| Personal Computer | 5150-X74
|
Un-known | March 1983 | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 64 KB | two 320 KB | none | Shipped without keyboard; includes adapter for integration with IBM 3278 terminal systems | [6] [8] [3]:?11-15? |
| Personal Computer | 5150-114
|
Un-known | June 1984 | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 256 KB | 160 KB | none | [5]:?228? [8] [9] [10] | |
| Personal Computer | 5150-164
|
Un-known | June 1984 | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 256 KB | 320 KB | none | [5]:?228? [8] [9] [10] | |
| Personal Computer | 5150-174
|
Un-known | June 1984 | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 256 KB | two 320 KB | none | [5]:?236? [8] [10] | |
| Personal Computer | 5150-104
|
June 1984 | April 1987 | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 256 KB | none | none | Diskless model; only means of data storage is through IBM Cassette BASIC | [5]:?228? [8] [9] [6]:?11-10? [10] |
| Personal Computer | 5150-166
|
June 1984 | April 1987 | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 256 KB | 256 KB | 360 KB | none | [5]:?236? [11] [10] | |
| Personal Computer | 5150-176
|
June 1984 | April 1987 | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 256 KB | 256 KB | two 360 KB | none | [5]:?236? [11] [10] | |
| Personal Computer | 5150-X66
|
June 1984 | December 1985 | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 256 KB | 256 KB | 360 KB | none | Shipped without keyboard | [5]:?236? |
| Personal Computer | 5150-X76
|
June 1984 | December 1985 | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 256 KB | 256 KB | two 360 KB | none | Shipped without keyboard | [5]:?236? |
| Personal Computer XT | 5160-087
|
March 1983 | June 1984 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 128 KB | 640 KB | 360 KB | 10 MB | [5]:?236? [12] [2]:?1068? | |
| Personal Computer XT | 5160-086
|
June 1984 | June 1987 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | 360 KB | 10 MB | [5]:?236? [11] [13] [14] | |
| Personal Computer XT | 5160-068
|
April 1985 | June 1987 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | 360 KB | none | [5]:?236? [2]:?1068? [15] [13] [14] | |
| Personal Computer XT | 5160-078
|
April 1985 | June 1987 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | two 360 KB | none | [5]:?236? [2]:?1068? [15] [13] [14] | |
| Personal Computer XT | 5160-088
|
April 1986 | June 1987 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 512 KB | 640 KB | 360 KB | 20 MB | Shipped with original IBM PC "Model F" keyboard | [5]:?236? [16] [13] [14] |
| Personal Computer XT | 5160-089
|
April 1986 | June 1987 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 512 KB | 640 KB | 360 KB | 20 MB | Shipped with Enhanced Keyboard | [5]:?236? [16] [13] [14] |
| Personal Computer XT | 5160-267
|
April 1986 | June 1987 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | 360 KB | none | Shipped with original IBM PC "Model F" keyboard | [5]:?236? [16] [13] [14] |
| Personal Computer XT | 5160-268
|
April 1986 | June 1987 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | 360 KB | none | Shipped with Enhanced Keyboard | [5]:?236? [16] |
| Personal Computer XT | 5160-277
|
April 1986 | June 1987 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | two 360 KB | none | Shipped with original IBM PC "Model F" keyboard | [16] |
| Personal Computer XT | 5160-278
|
April 1986 | June 1987 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | two 360 KB | none | Shipped with Enhanced Keyboard | [5]:?236? [16] |
| 3270 PC | 5271-000
|
Un-known | July 1987 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | 360 KB | none | Without printer adapter, fixed disk adapter, and keyboard | [17] [18] |
| 3270 PC | 5271-002
|
October 1983 | July 1987 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | 360 KB | none | Without printer adapter and fixed disk adapter | [5]:?49? [11] [19]:?10? [18] |
| 3270 PC | 5271-004
|
October 1983 | July 1987 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 320 KB | 640 KB | 360 KB | none | Without fixed disk adapter; stock onboard RAM increased to 384 KB in June 1984 | [5]:?49? [11] [19]:?10? [18] |
| 3270 PC | 5271-006
|
October 1983 | July 1987 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 320 KB | 640 KB | 360 KB | 10 MB | With 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 1984 | April 1987 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | 360 KB | none | [5]:?236? [19] [20] | |
| Personal Computer XT/370 | 5160-588
|
October 1984 | April 1987 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | 360 KB | 10 MB | [5]:?236? [19] [20] | |
| Personal Computer XT/370 | 5160-589
|
October 1984 | April 1987 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | 360 KB | 10 MB | [5]:?236? [20] | |
| PCjr | 4860-004
|
November 1983 | March 1985 | Custom | — | — | Intel 8088 | 4.77 | 64 KB | 128 KB | none | none | [21] [22] | |
| PCjr | 4860-067
|
November 1983 | March 1985 | Custom | — | — | Intel 8088 | 4.77 | 128 KB | 128 KB | 360 KB | none | [21] [22] | |
| Portable Personal Computer | 5155-068
|
February 1984 | June 1984 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 512 KB | 360 KB | none | [8] | |
| Portable Personal Computer | 5155-076
|
June 1984 | Un-known | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 512 KB | two 360 KB | none | [5]:?228? [23] | |
| Personal Computer AT | 5170-068
|
August 1984 | June 1987 | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 256 KB | 512 KB | 1.2 MB | none | [5]:?49? [24] [25] | |
| Personal Computer AT | 5170-099
|
August 1984 | June 1987 | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 512 KB | 1.2 MB | 20 MB | [5]:?236? [24] [25] | |
| Personal Computer AT | 5170-239
|
October 1985 | September 1986 | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 512 KB | 1.2 MB | 30 MB | [5]:?236? [26] [27] | |
| Personal Computer AT | 5170-839
|
January 1986 | June 1987 | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 512 KB | 1.2 MB | two 30 MB | Includes controllers for the IBM 4680 Store System | [5]:?236? [28] [25] |
| Personal Computer AT | 5170-899
|
January 1986 | June 1987 | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 512 KB | 1.2 MB | two 20 MB | Includes controllers for the IBM 4680 Store System | [5]:?236? [28] [25] |
| Personal Computer AT | 5170-319
|
April 1986 | June 1987 | ISA, 16-bit | 8 | 3 | Intel 80286 | 8 | 512 KB | 512 KB | 1.2 MB | 30 MB | [5]:?236? [29] [25] | |
| Personal Computer AT | 5170-339
|
April 1986 | July 1987 | ISA, 16-bit | 8 | 3 | Intel 80286 | 8 | 512 KB | 512 KB | 1.2 MB | 30 MB | Shipped with Enhanced Keyboard | [5]:?236? [29] [25] |
| Personal Computer AT | 5171-168
|
October 1986 | June 1987 | ISA, 16-bit | 8 | 3 | Intel 80286 | 8 | 512 KB | 512 KB | 1.2 MB | none | Built to TEMPEST specifications | [5]:?64? [25] |
| Personal Computer AT | 5171-339
|
October 1986 | July 1987 | ISA, 16-bit | 8 | 3 | Intel 80286 | 8 | 512 KB | 512 KB | 1.2 MB | 30 MB | Built to TEMPEST specifications | [5]:?64? [25] |
| Personal Computer AT/370 | 5170-599
|
October 1984 | April 1987 | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 512 KB | 1.2 MB | 20 MB | [5]:?202? [20] | |
| Personal Computer AT/370 | 5170-739
|
October 1985 | April 1987 | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 512 KB | 1.2 MB | 30 MB | [5]:?202? [30] [31] [20] | |
| Personal Computer AT/370 | 5170-919
|
April 1986 | April 1987 | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 512 KB | 1.2 MB | 30 MB | 1 MB total RAM (peripheral) | [5]:?57? [32] [20] |
| Personal Computer AT/370 | 5170-939
|
April 1986 | April 1987 | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 512 KB | 1.2 MB | 30 MB | 1 MB total RAM (peripheral); shipped with Enhanced Keyboard | [5]:?57? [32] [20] |
| PC Convertible | 5140-002
|
April 1986 | Un-known | ISA, 8-bit (proprietary) | — | — | Intel 8088 | 4.77 | 256 KB | 512 KB | two 720K | none | Application bundle | |
| PC Convertible | 5140-022
|
April 1986 | Un-known | ISA, 8-bit (proprietary) | — | — | Intel 8088 | 4.77 | 256 KB | 512 KB | two 720K | none | ||
| Personal Computer XT Model 286 | 5162-286
|
September 1986 | October 1987 | ISA, 16-bit | 8 | 2 | Intel 80286 | 6 | 640 KB | 640 KB | 1.2 MB | 20 MB | [5]:?48? [27] [14] | |
| Industrial Computer 5531 | 5531-001
|
October 1983 | Un-known | ISA, 8-bit | 8 | 3 | Intel 8088 | 4.77 | 128 KB | 640 KB | 360 KB | 10 MB | Industrial version of the IBM PC XT | [33] [34] |
| Industrial Computer 5531 | 5531-011
|
April 1984 | Un-known | ISA, 8-bit | 8 | 3 | Intel 8088 | 4.77 | 256 KB | 640 KB | 1.2 MB | none | Industrial version of the IBM PC XT | [33] [34] [35] |
| Industrial Computer 5531 | 5531-021
|
May 1985 | Un-known | ISA, 8-bit | 8 | 3 | Intel 8088 | 4.77 | 256 KB | 640 KB | 1.2 MB | 20 MB | Industrial version of the IBM PC XT | [33] [34] |
| 7531 Industrial Computer | 7531-041
|
May 1985 | Un-known | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 1 MB | Un-known | Un-known | Industrial version of the IBM PC AT, tower form-factor | |
| 7532 Industrial Computer | 7532-041
|
May 1985 | Un-known | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 1 MB | Un-known | Un-known | Industrial version of the IBM PC AT, 19-inch rack-mountable form factor | |
| Industrial Computer 7552 | 7552-040
|
October 1986 | Un-known | ISA, 16-bit MCA, 16-bit (undocumented) |
8 (modules, 7 fillable) | 3 (as modules) | Intel 80286 | 10 | 4 MB | Un-known | none | none | 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 the PS/2 line in April 1987 | [36] [37] [38] [39] |
| Industrial Computer 7552 | 7552-140
|
October 1986 | Un-known | ISA, 16-bit MCA, 16-bit (undocumented) |
8 (modules, 7 fillable) | 3 (as modules) | Intel 80286 | 10 | 4 MB | Un-known | one 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 the PS/2 line in April 1987 | [36] [37] [38] [39] |
Successor lines
[edit]- Personal System/2 (list of models)
- Industrial System (list of models)
- PCradio (list of models)
- Ambra (list of models)
- PS/note (list of models)
- EduQuest (list of models)
- ThinkPad
- PS/ValuePoint (list of models)
- Aptiva (list of models)
- PC Series (list of models)
- NetVista
- ThinkCentre
Timeline
[edit]| Timeline of the IBM Personal Computer |
|---|
 |
| Asterisk (*) denotes a model released in Japan only |
See also
[edit]- Predecessors to the IBM PC:
- IBM 5100 (1975)
- IBM 5110 (1978)
- IBM 5120 (1980)
- IBM System/23 Datamaster (1981)
- Japan-only IBM PC variants:
- IBM IntelliStation
- List of IBM products
- IBM PC compatible
References
[edit]General references
[edit]- IBM Personal System/2 and IBM Personal Computer Product Reference (PDF) (4.0 ed.). International Business Machines Corporation. April 6, 1987 – via Bitsavers.
- Mueller, Scott (1994). Upgrading and Repairing PCs (4th ed.). Que. ISBN 9781565299320 – via the Internet Archive.
Footnotes
[edit]- ^ a b Hogan, Thom (September 14, 1981). "IBM Announces New Microcomputer System". InfoWorld. 3 (18). IDG Publications: 1, 14 – via Google Books.
- ^ a b c d e Mueller, Scott (1994). Upgrading and Repairing PCs (4th ed.). Que. ISBN 9781565299320 – via the Internet Archive.
- ^ a b c d e f g h Somerson, Paul (April 1983). "Revised Figures". PC Magazine. 1 (12). Ziff-Davis: 102 – via Google Books.
- ^ Ditela, Steve (December 14, 1981). "Wizard in Your Home". New York. 14 (49): 46–72 – via Google Books.
- ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am IBM Personal System/2 and IBM Personal Computer Product Reference (PDF) (4.0 ed.). International Business Machines Corporation. April 6, 1987 – via Bitsavers.
- ^ a b c d e f g Machine Preface. IBM Information Systems Group. November 1983. p. MP 1.4 – via the Internet Archive.
- ^ A Guide to IBM Personal Computers (PDF). International Business Machines Corporation. April 1985 – via Ardent Tool.
- ^ a b c d e f g h "IBM PC 1, PC/XT & Portable PC Personal Computers". Microcomputer Systems. 3. Data Decisions: 13. 1984 – via the Internet Archive.
- ^ a b c IBM Personal Computer Hardware Prices (PDF). IBM Product Center. June 1984. p. obverse – via the Vintage Technology Digital Archive.
- ^ a b c d e f Staff 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.
- ^ a b c d e f Staff writer (June 11, 1984). "IBM Slashes PC Prices, Adds Memory; Drops 64KB". Electronic News. 30 (1501). Sage Publications: 24 – via Gale.
- ^ Sandler, Corey (April 1983). "IBM Drops the First Shoe". PC Magazine. 1 (12). Ziff-Davis: 90–102 – via Google Books.
- ^ a b c d e f Sanger, David E. (June 24, 1987). "I.B.M. Optimistic on Newest PC's". The New York Times: D4. ProQuest 426534977.
- ^ a b c d e f g Bridges, 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.
- ^ a b Sager, Ira (April 8, 1985). "IBM moves to reduce PC XT inventories". Electronic News. 31. Sage Publications: 24 et 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.
- ^ a b c d e f Whitmore, 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.
- ^ "IBM 3770 Family Batch Communications Terminals" (PDF). Distributed Processing & Intelligent Terminals. Datapro: C21-491-101. January 1984 – via Bitsavers.org.
- ^ a b c d Libes, Sol (February 28, 1984). "3270 emulation board makers, beware! IBM is aiming at you". PC Week. 1 (28). Ziff-Davis: 25 et seq – via Gale.
- ^ a b c d e Henkel, T. (October 24, 1983). "IBM Takes Wraps off Two Micros Capable of Accessing Mainframes". Computerworld. 17 (43). IDG Publications: 1, 10 – via Google Books.
- ^ a b c d e f g "IBM Gives Up on the Personal XT/, AT/370". Computer Business Review. New Statesman Media Group. April 13, 1987. Archived from the original on September 20, 2023.
- ^ a b "IBM PCjr". Microcomputer Systems. 3. Data Decisions: 6. 1984 – via the Internet Archive.
- ^ a b Castro, Janice; Bob Buderi; Thomas McCarroll (April 1, 1985). "Kicking Junior Out of the Family". Time. Time Inc. Archived from the original on June 25, 2009. Retrieved February 23, 2011.
- ^ Staff writer (June 18, 1984). "IBM cuts micro prices". Computerworld. XVIII (25). IDG Publications: 8 – via Google Books.
- ^ a b Whitmore, 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.
- ^ a b c d e f g h Abruzzese, George (June 29, 1987). "IBM Plans to Terminate Remainder of PC Line". InfoWorld. 9 (26). IDG Publications: 1, 69 – via Google Books.
- ^ 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.
- ^ a b Ristelhueber, Robert; Ira Sager (September 8, 1986). "4 PC suppliers add 286 units in battle with compatibles". Electronic News. 32. Sage Publications: 1 et seq – via Gale.
- ^ a b Whitmore, Sam (January 14, 1986). "IBM Debuts PC AT-Based Point-of-Sale Retail System". PC Week. 3 (2). Ziff-Davis: 8 – via Gale.
- ^ a b Whitmore, Sam (April 1, 1986). "IBM meetings said to key on new products". PC Week. 3 (13). Ziff-Davis: 1 – via Gale.
- ^ 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.
- ^ "Desktop Systems". PC Tech Journal. 4 (13). Ziff-Davis: 69. 1987 – via the Internet Archive.
- ^ a b Kennedy, Don (April 2, 1986). "IBM has boosted the processor speed and storage capacity of its personal computer models". PR Newswire. p. NYPR14C – via Gale.
- ^ a b c Staff writer (April 25, 1984). "Industrial-strength PC XT". UPI.com. United Press International. Archived from the original on September 20, 2023.
- ^ a b c "IBM 7531 Industrial Computer" (Announcement letter). International Business Machines Corporation. May 21, 1985. 185-053.
- ^ "IBM unveils entry-level 5531 model". Computerworld. XIX (17). IDG Publications: 48. April 29, 1985 – via Google Books.
- ^ a b "IBM 7552 Industrial Computer Model 540" (Announcement Letter). Industrial Business Machines Corporation. November 3, 1987. Retrieved January 19, 2025.
- ^ a b Kono, 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.
- ^ a b Wallace, Bob (October 20, 1986). "IBM uncloaks industrial micro as network gateway". Network World. 3 (33). IDG Publications – via Google Books.
- ^ a b Cleaveland, 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.