Chronology of IBM Personal Computers

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Last updated: 2022 April 29.


1992

January 8
  • IBM begins shipping a 386SX upgrade for the PS/2 Model 57SX, giving it up to 88% faster performance. [1297.D4]
(month unknown)
  • IBM introduces the Limited Availability release of OS/2 2.0. [1067.301]
February
  • IBM introduces the PS/2 Model 56 SLC. [1312]
  • IBM introduces the PS/2 Model 57 SLC. [1312]
March
  • IBM introduces the PS/2 Model 35 SX-4B1 and PS/2 Model 35 SX-4B2. Both use 386SX processors. [1312]
  • IBM introduces the PS/2 Model CL57SX, IBM's first color laptop computer. [1312]
  • IBM announces a laptop computer with active-matrix color screen and MCA bus. [914.41]
  • Apple Computer and IBM found Taligent, to work on a platform-independent operating system. [206.289] [400.6] (1991 October [205.95] [399.32] [431.87])
April
  • IBM ships the OS/2 2.0 operating system. It requires an Intel 386 processor, 4 MB RAM, and adds WIN-OS/2 3.0 for Windows 3.0 compatibility. Code-name during development was Cruiser. [477.165] [479.128] [606.81] [688.44,688.107] [734.347] [858.71] [1299.383] [1572.28] (March [1057.32] [1639.116])
April (month)
  • Top selling IBM PC computer game in the UK during the month: Eye of the Beholder. [2581.23] (\iUltima VII\i [2653.24])
June
  • IBM and Microsoft sign a "divorce" document, formally ending their cooperation on operating systems development. IBM claims no rights to Windows NT, can use Windows source code until September 1993, and will pay Microsoft a royalty for each copy of OS/2 sold. Microsoft pays a lump sum of US$25-30 million for the use of IBM patents. [68] [1299.438]
(month unknown)
  • IBM introduces the PS/2 Ultimedia Model M57SLC computer. It features 20 MHz IBM 386SLC processor, VGA, six MCA slots, XGA video adapter, M-Audio audio board, 3.5-inch 2.88 MB floppy drive, 600 MB SCSI CD-ROM drive, 4 MB RAM, 160 MB SCSI hard drive. Price is US$5995. Optional 15-inch 8515 color monitor is US$950. [1093.269]
  • IBM introduces the 486SLC processor. [606.64]
  • IBM's Individual Computer Products International introduces IBM Ambra personal computers in Europe, based on Advanced Micro Devices and Intel processors. Prices range from US$1600 to US$2700. [1093.26]
July
  • IBM introduces the IBM PS/note N45 SL lightweight portable computer. [1312]
September
  • IBM creates the IBM Personal Computer Company. [361.58] [618.323] [1312]
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  • IBM introduces the 20/40 MHz and 25/50 MHz 486SLC2 microprocessors. They feature a 16 kB cache and optimized instruction set, but no internal math coprocessor, and only a 16-bit data path. [477.129] (October, 486SLC [696.125])
October 5
  • IBM Personal Computer introduces the IBM ThinkPad line of laptop computers. The ThinkPad 300 (made by Zenith Data Systems) features a 25 MHz 386SL processor. The ThinkPad 700 features monochrome 9.5-inch display, 25 MHz 486SLC, 6.5 pounds weight, nickel-metal-hydride battery good for about 3.75 hours, 80/120 hard drive, 4 MB RAM. The ThinkPad 700C features 25 MHz 486SLC, 7.5 pounds weight, Microchannel bus, 10.3-in TFT active-matrix VGA color, nickel-metal-hydride battery good for about 2-3 hours use, DOS 5.0, price about US$4000, TrackPoint II integrated pointing device, 4 MB RAM, removable 120 MB hard drive, size is 11.5 x 8.25 x 2.25 inches. The ThinkPad 700T was previously called ThinkPad. [75] [582.91] [933] [1052.3] [1264.44] [1280.49] [1312] [1559] [1602.39]
October
  • IBM Personal Computer introduces the IBM PS/2 56, 57, 76, and 77 computer models. [1572.40]
  • IBM Personal Computer introduces the IBM PS/ValuePoint line of personal computers. The ValuePoint 433DX features 33 MHz 486, 8 MB RAM, 170/213 MB IDE hard drive, 1.44 MB disk drive, ISA bus, SuperVGA graphics, and OS/2. The ValuePoint 425SX features 25 MHz 486SX, 8 MB RAM, 80/170 MB hard drive, and OS/2. The ValuePoint 325T features 25 MHz 386SLC, 2 MB RAM, 80/170 MB hard drive, and DOS 5.0). [311.37] [1312] [1572.40]
November
  • IBM releases XR06055 ServicePak for OS/2 2.0. [858.71]
November 16
  • At COMDEX, IBM demonstrates its "Blue Lightning" 486 processor, running at 100 MHz internally. It is like a 486SLC2 with 16 kB cache, 386DX-compatible 32-bit bus interface, and clock tripler. [965]
Year
  • Market share of personal computer shipments in the USA for the year: IBM 10%, Apple Computer 12-13.4%, Compaq 5.6%. [958.48] [1958.44]
  • World market share of personal computers for the year: IBM: 15%. [606.55]
  • DOS world-wide market share: Microsoft 79%, IBM 16%, Novell 5%. [879.30]

1993

March
  • IBM ships the 2 millionth copy of OS/2 2.0. [734.347] [1312]
April
  • IBM releases PC-DOS 6.0 operating system. [1639.123]
June
  • IBM releases OS/2 2.1, now including Win-OS/2 3.1 Windows 3.1 support. Code-name during development was Borg. [60] [479.129] [858.71] [689.231] [1312]
July
  • IBM Technology Products formally unveils the Blue Lightning processor, a 486 without floating point support but with 16 kB cache and 386DX compatible pin-out packaging. Internal clock rate is up to 75 MHz, using clock doubling or tripling. [65] [988]
August
  • IBM creates the Ambra Computer Corporation, a subsidiary of the IBM PC Company, to sell a new low-cost line of PCs. [65] [66] (January [504.44])
September
  • The 1992 Joint Development contract between IBM and Microsoft, in which each company had access to the other's source code for OS/2 and Windows, expires. [501.102] [544.30]
October
  • IBM releases XR06100 ServicePak for OS/2 2.0. [858.71]
  • IBM and Motorola announce the PowerPC Reference Platform (PReP) specification. With this, system makers could make compatible systems that can run shrink-wrapped applications. Such systems could run AIX, Solaris, Windows NT, and others. [881.81] [1099]
November
  • IBM releases OS/2 2.1 for Windows. It is like OS/2 2.1, but does not include Win-OS/2 3.1. Code-name during development was Ferengi. [537.32] [858.71] [1312]
December 2
  • A IBM ThinkPad computer makes its first trip on the space shuttle. [1559]
December 31
  • Shipments of IBM OS/2 2.1 to date: 3 million. [1312]
Year
  • Shipments of IBM personal computers for the year: 2,075,000. [506.38]
  • Market share of personal computers worldwide during the year: IBM 10.8%, Apple Computer 9.4%, Compaq Computer 8.1%. [1659.D7]

1994

February
  • IBM releases XR06200 ServicePak for OS/2 2.1. [858.71]
  • IBM announces that it will shut down its Ambra Europe company by the end of March. [76]
(month unknown)
  • IBM closes down the European division of the Ambra company. [504.44]
April
  • IBM releases XR06300 ServicePak for OS/2 2.1 for Windows. [858.71]
  • IBM releases PC-DOS 6.3. [90]
June
  • IBM releases OS/2 for SMP, for multiple-processor systems. [858.71]
(month unknown)
  • IBM releases the IBM ThinkPad 755 portable computer. It is the first notebook computer with a CD-ROM drive. [1602.39]
July
  • IBM announces that it will shut down the US operations of its Ambra subsidiary in October. [89] [504.44]
August
  • IBM shuts down its Ambra PC division. [239.155]
September
  • IBM introduces the Aptiva line, to replace the PS/1 line, aimed at the home PC market. [93] [505.38]
July-September
  • Personal computer shipments in the US for the past three months: Apple Computer 641,000, Compaq Computer 617,000, Packard Bell 575,000, IBM 470,000, Gateway 2000 230,000. [1528.34]
October 11
  • IBM announces that the release name of the next OS/2 version will be "OS/2 Warp". [858.7]
October
  • IBM formally launches OS/2 Warp version 3. [95] [142] [188.1] [858.71]
  • IBM reduces its lines of personal computer from nine to four, introduces some new models, and resurrects the IBM Personal Computer brand name. [1657.D17]
  • IBM drops the PS/2, PS/1, Ambra, and ValuePoint lines, and XGA graphics, in favor of industry standards for its new PC line, the Series 300 and Series 700. [95] [96]
November 7
  • Apple Computer, Motorola, and IBM announce that they will create a computer platform to run all major operating systems, except the Intel x86-based Microsoft Windows 3.1 and successors. Apple Computer will port the Mac OS to this platform, and license other vendors to create Mac-compatible computers. IBM will port OS/2 and AIX, SunSoft will port Solaris, Motorola will port Windows NT, and Novell will port NetWare. [184.102] [397.12] [881.76,81] [739.128] [936] [2605.252]
(month unknown)
  • IBM temporarily suspends shipments of Pentium-based systems, pending a review of the chip's floating-point divide bug. [856]
Year
  • Market share of home personal computers in the US for the year: Packard Bell 32.4%, Apple Computer 14.7%, Compaq Computer 11.5%, IBM 6.1%, Gateway 5.5%, other 29.8%. [1748.108]
  • Desktop computer market share: Apple Computer: 12%, Packard Bell: 12%, Compaq Computer: 11%, IBM: 9%, Dell: 6%, Gateway 2000: 5%, Hewlett-Packard: 3%, Digital: 2%, AST: 2%, Acer: 2%, Other: 36%. [284.104]
  • Market share of personal computers worldwide during the year: Compaq Computer 10.3%, Apple Computer 9.4%, IBM 8.5%. [1659.D7]
  • US shipments of IBM personal computers for the year: 1,669,000. [585.47]
  • US market share of personal computers: Compaq Computer 12.5%, Packard Bell 11.4%, Apple Computer 11.6%, IBM 9.0%, Gateway 2000 5.2%, Dell Computer 4.2%, Hewlett-Packard 2.4%, Acer America 2.4%, Toshiba 3.6%, AST Research 3.9%, others 33.7%. [585.47]

1995

January
  • IBM announces that 1 million copies of OS/2 Warp have shipped. [142]
February
  • IBM announces PC DOS 7, with integrated data compression from Stac Electronics (Stacker). [142]
March
  • IBM releases the ThinkPad 701C. It features an automatically expanding full-sized keyboard, dubbed the Butterfly, 10.4-inch thin-film transistor active-matrix color display, 50 MHz Intel 486DX2, 14.4 kbps fax/modem, 360 or 540 MB hd, 4 or 8 MB RAM, two Type II PCMCIA slots, infrared port, audio in/out port, video port, TrackPoint III pointing device, external 3.5-in disk drive, PC DOS 6.3, Win 3.11. The nickel cadmium battery provides power for about 1.2 hours. Weight is 4.3 pounds; size is 11.5 x 5.7 x 2 inches. [439.32] [471.35] [1559] [1586.110]
April
  • IBM releases PC DOS 7. [105]
May
  • IBM unveils its new IBM PC 300 desktop systems, with 75 MHz and 90 MHz Pentium CPUs. Complete systems start at US$2000. [127]
June
  • IBM adds the 133 MHz Pentium to its IBM PC 700 line. [142]
  • At the PC Expo show, IBM debuts the Power Series 830 workstations with the PowerPC 604 microprocessor (100-133 MHz), and the ThinkPad Power Series 820 and 850 with a 100 MHz PowerPC 603e. [142] [377.6] [125] [128] [145] [212.191] [397.12] [622] [411] (Power Series 850 [385.14])
July
  • IBM announces that it will offer customers the Mac OS for purchase with its PowerPC-based systems in 1996. [568]
August 24
  • Microsoft signs a licensing agreement allowing IBM to install Windows 95 on its personal computers. IBM is the last company allowed to license the operating system prior to the product launch, and also pays the most, US$45.90 per copy. [1711.230]
September
  • IBM introduces the Aptiva PC. [142]
October
  • IBM celebrates the first anniversary of launching OS/2 Warp, with nearly 4 million copies sold. [142]
  • IBM releases the ThinkPad 760CD, with the industry's first 12.1-inch thin-film transistor display on a laptop. The laptop uses a 120 MHz Pentium processor. [439.32]
November 14
  • IBM, Apple Computer, and Motorola release the PowerPC Platform specifications, called the Common Hardware Reference Platform (CHRP). It encompasses support for Macintosh System 7, Windows NT, AIX, Solaris, NetWare, and OS/2. Windows 3.x and Windows 95 are excluded. [283.56] [433.15] [439.12] [1559] [1597.86] [2605.253] (November 1994 [64.31])
December 4
  • IBM licenses Java from Sun Microsystems for use in hardware and software. [948.103] [1559]
December
  • IBM completes work on OS/2 for the PowerPC. [381.11]
December (month)
  • Shipments of IBM OS/2 for the month: 1 million, bringing the installed base to 12.7 million. [295.3] [462.6]
Year
  • Shipments of personal computers worldwide during the year: IBM 4.7 million, Packard Bell NEC 4.5 million. [1896.D2]
  • Worldwide company shipments of personal computers for the year: Compaq Computer 6 million, IBM 4.8 million, Apple Computer 4.7 million. [521.10]
  • Worldwide personal computer market share for the year: Compaq Computer 10%, IBM 8%, Apple Macintosh 7.8%. [521.10]
  • Personal computer market share in the US for the year: Compaq Computer 12.2%, Packard Bell 11.3%, Apple Computer 11.1%, IBM 8.3%, Gateway 2000 5.1%, Dell Computer 4.6%, Hewlett-Packard 4.5%, Acer America 3.6%, Toshiba 3.5%, AST Research 2.4%. [585.47] [521.10] [630.14]
  • Market share of personal computer shipments worldwide for the year: IBM 7.9%. [1896.D2]

End of 1992-1995. Next: 1996.
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1952-1982 1983-1986 1987-1991 1992-1995 1996-end


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