The IBM PS/1 is a brand for a line of personal computers that marked IBM's return to the home market in 1990, five years after the IBM PCjr. It was replaced by the IBM Aptiva in September 1994.
The PS/1 line was created for new computer users and was sold in consumer electronics stores alongside comparable offerings from Compaq, Hewlett-Packard, Packard Bell, and others. American PS/1 models came with a modem installed so users could access online IBM help services, which were provided by partnerships with Prodigy and Quantum.
Like the PCjr, the PS/1's name suggested a more limited machine than IBM's business line, the PS/2. However, unlike the PS/2, the PS/1 was based upon architecture closer to the AT and compatibles, for example using ISA, plain VGA, and IDE. Although the first models used custom-designed components and design, later desktop and tower models used mostly standard components. The earlier models included a ROM with IBM's PC DOS and a graphical shell, however the system was compatible with other DOS implementations and the shell could be installed on the hard drive. Later models included a feature called "Rapid Resume"[1] which gave the computers the ability to go into standby mode as well as a hibernation function. There were several form factors used during the PS/1's production, with the 2133 and 2155 cases used for several model years while the 2168 tower case was offered later in later models of the PS/1 lineup:
2011 Proprietary design, power supply is within CRT
2121 Proprietary design, power supply is within CRT, up to two available ISA slots
2123 Limited-production model. Based on IBM PS/2 model 30 case, three available ISA slots
2133 Desktop case. The 3x3 references the available slots and drive bays.
2155 Desktop case larger than 2133. The 5x5 references the available slots and drive bays. Including a 5.25" bay.
2168 Tower unit. The 6x8 references the available slots and bays. Including 5.25" bays.
The original PS/1 (Model 2011), based on a 10 MHz Intel 80286 CPU, was designed to be easy to set up and use. It featured 512 KB of on-board memory (expandable to 1 MB or 2.5 MB with proprietary memory modules), built-in modem (in American models only) and an optional 30 MB or 40 MB hard disk. IBM also released a 5.25" disk drive unit, a $169 ISA Adapter Card Unit (ACU) [2] to install third-party expansion cards, and a $995 CD-ROM drive, based on a Western Digital SCSI chip, that fit underneath the case.[3] Some of the lower-end PS/1 models suffered from very limited expansion capabilities, since they lacked standard ISA expansion slots.
The 2121 series computers used the same form factor as the 2011 series, but included up to two ISA slots inside the case. Memory could be expanded from 2MB to 6MB using a proprietary 4 MB memory module. The higher-end 2121 featured an Intel 80386SX processor running at 16 or 20 MHz.
The 2121 series PS/1 computers can be split into the following major hardware categories:[3][4]
Model
US List
MB FRU
CPU
ISA Slots
RAM
VRAM
Hard-Drive
Serial / Modem
2121-C42
$1,699
92F9690
Intel 80386SX @ 16 MHz
0
2 MB
256KB
95F4720 (40 MB IDE)
2400 baud modem
2121-B82
$2,199
92F9690
Intel 80386SX @ 16 MHz
2
2 MB
256KB
92F9943 (80 MB IDE)
2400 baud modem
2121-C92
?
?
Intel 80386SX @ 16 MHz
0
2 MB
256KB
129 MB IDE
2400 baud modem
2121-G42
?
93F2184
Intel 80386SX @ 20 MHz
0
2 MB
256KB
40 MB IDE
2400 baud modem
2121-A82
?
?
Intel 80386SX @ 20 MHz
2
2 MB
256KB
40 MB IDE
2400 baud modem
2121-S92
?
?
Intel 80386SX @ 20 MHz
0
2 MB
256KB
129 MB IDE
2400 baud modem
2121-M82
?
?
Intel 80386SX @ 20 MHz
2
2 MB
256KB
80 MB IDE
2400 baud modem
2121-A62
?
?
?
2
? MB
256KB
56F8863 (160 MB IDE)
2400 baud modem
2121-A92
?
?
?
?
? MB
256KB
? MB IDE
serial port
2121-A94
?
?
Intel 80386SX @ 20 MHz
2
6 MB
256KB
129 MB IDE
2400 baud modem
Monitors IBM made the decision to put the DC power supply in the monitor, making use of third-party monitors difficult and essentially impractical and limiting the usefulness of the computer if the monitor needed service (similar to the problems of the Coleco Adam and Amstrad 1512 years earlier). Some models were sold with greyscale VGA monitors. However, some hobbyists could manage to remap the pinouts to allow for third-party monitors.
"DOS in ROM" Similar to a few Tandy 1000 models, the early 2011 and 2121 had an operating system (PC DOS 4.01) built into ROM, rather than loading it from a hard drive. The ROM disk would then load a "4-quad" screen which allowed users to access help, rapidly launch pre-installed software, connect online, and access files on the hard drive. It was possible to have the computer boot from the hard drive if the operating system was upgraded, and IBM provided a DOS 6.22-compatible version of the "4-quad" program that could be launched from the hard drive if users wished to continue using it.[5]
Model 2133
IBM PS/1 2168
The 2133 series PS/1 computers can be split into the following major hardware categories:[6][7]
Model
MB FRU
CPU
RAM
SIMM
Video chip
VRAM
Hard-Drive
Notes
2133-711
93F2397
Intel 80386SX @ 25 MHz
2 MB
2×72 Pin FPM
256KB
59G9567 (85 MB IDE)
2133-811
Intel 80386SX @ 25 MHz
4 MB
85 MB IDE
2133-13
???
Intel 80386SX @ 25 MHz
2 MB
2x72 Pin FPM
256KB
???
2133-W13
Intel 80386SX @ 25 MHz
2 MB
129 MB IDE
2133-13T
65G3766
Intel 80486SX @ 25 MHz
4 MB
2×72 Pin FPM
256KB
93F2329 (129 MB IDE)
2133-?43
34G1885
Intel 80486SX @ 20 MHz
4 MB
2×30 Pin FPM
512KB
93F2329 (129 MB IDE)
2133-?50
34G1848
Intel 80486SX @ 25 MHz
4 MB
2×30 Pin FPM
512KB
93F2329 (129 MB IDE)
2133-?53
34G1848
Intel 80486SX @ 25 MHz
4 MB
2×30 Pin FPM
512KB
93F2329 (129 MB IDE)
2133-652
Intel 80486SX @ 33 MHz
4 MB
4×72 Pin FPM
Cirrus CL-GD5424
512KB
84G3927 (171 MB IDE)
2133-575
Intel 80486DX @ 33 MHz
4 MB
4×72 Pin FPM
512KB
170 MB IDE
2133-594
Intel 80486DX2 @ 66 MHz
4 MB
4×72 Pin FPM
512KB
253 MB IDE
2133-E11
Intel 80386SX @ 25 MHz
2 MB
2×72 Pin FPM
Cirrus CL-GD5424
512 KB
85 MB IDE
Canada models, English model
2133-F11
Intel 80386SX @ 25 MHz
2 MB
2×72 Pin FPM
Cirrus CL-GD5424
512 KB
85 MB IDE
Canada models, French model
2133-E43
Intel 80486SX @ 20 MHz
2 MB
8×30 Pin FPM
Tseng ET4000
512 KB
129 MB IDE
Canada models, English model
2133-F43
Intel 80486SX @ 20 MHz
2 MB
8×30 Pin FPM
Tseng ET4000
512 KB
129 MB IDE
Canada models, French model
2133-E53
Intel 80486SX @ 25 MHz
2 MB
8×30 Pin FPM
Tseng ET4000
512 KB
129 MB IDE
Canada models, English model
2133-F53
Intel 80486SX @ 25 MHz
2 MB
8×30 Pin FPM
Tseng ET4000
512 KB
129 MB IDE
Canada models, French model
Post-"DOS in ROM" models
On May 11, 1993, IBM introduced a "new generation" of the PS/1 line.[8] Later PS/1s featured standard LPX-architecture motherboard. Many of these later PS/1s shipped from the factory with MS-DOS and Microsoft Windows, rather than IBM's PC DOS or OS/2. An early 2133 model did come preloaded with OS/2 2.1. This was because IBM targeted OS/2 for high-end computing machines with more power.
Discontinuation
The PS/1 line was discontinued in 1994 and replaced with the Aptiva line, which was architecturally very similar to the later models of the PS/1, but with a more marketing-friendly name. Aptivas were sold in the United States until early 2000, when price pressures made the line unprofitable and IBM withdrew from the retail desktop PC market entirely.
^"Hardware Maintenance Service for PS1 computer (Machine Types 2133, 2155, and 2168)". IBM Corporation. March 1993. 63G2028. {{cite journal}}: Cite journal requires |journal= (help).
^Lewis, Peter H. (1993-05-11). "PERSONAL COMPUTERS; From Stepchild to Favorite Son". The New York Times. ISSN 0362-4331. Retrieved 2017-07-01.
confused, with, sony, playstation, models, brand, line, personal, computers, that, marked, return, home, market, 1990, five, years, after, pcjr, replaced, aptiva, september, 1994, typepersonal, computerrelease, date1990discontinued1994predecessoribm, pcjrsucce. Not to be confused with Sony PlayStation models The IBM PS 1 is a brand for a line of personal computers that marked IBM s return to the home market in 1990 five years after the IBM PCjr It was replaced by the IBM Aptiva in September 1994 IBM PS 1TypePersonal computerRelease date1990Discontinued1994PredecessorIBM PCjrSuccessorIBM AptivaRelatedIBM PS 2This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources IBM PS 1 news newspapers books scholar JSTOR February 2011 Learn how and when to remove this template message Contents 1 Position among IBM s PC brands 2 Models 2 1 Models 2011 and 2121 2 2 Model 2133 2 3 Post DOS in ROM models 3 Discontinuation 4 See also 5 References 6 External linksPosition among IBM s PC brands EditThe PS 1 line was created for new computer users and was sold in consumer electronics stores alongside comparable offerings from Compaq Hewlett Packard Packard Bell and others American PS 1 models came with a modem installed so users could access online IBM help services which were provided by partnerships with Prodigy and Quantum Like the PCjr the PS 1 s name suggested a more limited machine than IBM s business line the PS 2 However unlike the PS 2 the PS 1 was based upon architecture closer to the AT and compatibles for example using ISA plain VGA and IDE Although the first models used custom designed components and design later desktop and tower models used mostly standard components The earlier models included a ROM with IBM s PC DOS and a graphical shell however the system was compatible with other DOS implementations and the shell could be installed on the hard drive Later models included a feature called Rapid Resume 1 which gave the computers the ability to go into standby mode as well as a hibernation function There were several form factors used during the PS 1 s production with the 2133 and 2155 cases used for several model years while the 2168 tower case was offered later in later models of the PS 1 lineup 2011 Proprietary design power supply is within CRT 2121 Proprietary design power supply is within CRT up to two available ISA slots 2123 Limited production model Based on IBM PS 2 model 30 case three available ISA slots 2133 Desktop case The 3x3 references the available slots and drive bays 2155 Desktop case larger than 2133 The 5x5 references the available slots and drive bays Including a 5 25 bay 2168 Tower unit The 6x8 references the available slots and bays Including 5 25 bays Models EditIBM PS 1 model 2011 Release date1990 33 years ago 1990 Operating systemPC DOS 4 01 in ROM CPUIntel 80286 10 MHzMemory512 KB 2 5 MBIBM PS 1 model 2121 Release date1992Discontinued1993Operating systemPC DOS 4 01 in ROM CPUIntel 80386SX 16 MHz 20 MHzMemory2 MB 6 MBIBM PS 1 model 2133 Release date1992Discontinued1993Operating systemPC DOS 4 01 or OS 2 v2 1CPUIntel 80386SX 25 MHz or 80486SX 20 MHz or 80486SX 25 MHz or 80486DX 33 MHz or 80486DX2 50 MHzMemory2 MB 16 MB 2 4MB on board IBM PS 1 model 2155 Release date1993Discontinued1994Operating systemPC DOS 6 00 Windows 3 1CPUIntel 80486SX 25 MHz or Intel 80486SX 33 MHzMemory2 MB 6 MBModels 2011 and 2121 Edit The original PS 1 Model 2011 based on a 10 MHz Intel 80286 CPU was designed to be easy to set up and use It featured 512 KB of on board memory expandable to 1 MB or 2 5 MB with proprietary memory modules built in modem in American models only and an optional 30 MB or 40 MB hard disk IBM also released a 5 25 disk drive unit a 169 ISA Adapter Card Unit ACU 2 to install third party expansion cards and a 995 CD ROM drive based on a Western Digital SCSI chip that fit underneath the case 3 Some of the lower end PS 1 models suffered from very limited expansion capabilities since they lacked standard ISA expansion slots The 2121 series computers used the same form factor as the 2011 series but included up to two ISA slots inside the case Memory could be expanded from 2MB to 6MB using a proprietary 4 MB memory module The higher end 2121 featured an Intel 80386SX processor running at 16 or 20 MHz The 2121 series PS 1 computers can be split into the following major hardware categories 3 4 Model US List MB FRU CPU ISA Slots RAM VRAM Hard Drive Serial Modem2121 C42 1 699 92F9690 Intel 80386SX 16 MHz 0 2 MB 256KB 95F4720 40 MB IDE 2400 baud modem2121 B82 2 199 92F9690 Intel 80386SX 16 MHz 2 2 MB 256KB 92F9943 80 MB IDE 2400 baud modem2121 C92 Intel 80386SX 16 MHz 0 2 MB 256KB 129 MB IDE 2400 baud modem2121 G42 93F2184 Intel 80386SX 20 MHz 0 2 MB 256KB 40 MB IDE 2400 baud modem2121 A82 Intel 80386SX 20 MHz 2 2 MB 256KB 40 MB IDE 2400 baud modem2121 S92 Intel 80386SX 20 MHz 0 2 MB 256KB 129 MB IDE 2400 baud modem2121 M82 Intel 80386SX 20 MHz 2 2 MB 256KB 80 MB IDE 2400 baud modem2121 A62 2 MB 256KB 56F8863 160 MB IDE 2400 baud modem2121 A92 MB 256KB MB IDE serial port2121 A94 Intel 80386SX 20 MHz 2 6 MB 256KB 129 MB IDE 2400 baud modemMonitors IBM made the decision to put the DC power supply in the monitor making use of third party monitors difficult and essentially impractical and limiting the usefulness of the computer if the monitor needed service similar to the problems of the Coleco Adam and Amstrad 1512 years earlier Some models were sold with greyscale VGA monitors However some hobbyists could manage to remap the pinouts to allow for third party monitors DOS in ROM Similar to a few Tandy 1000 models the early 2011 and 2121 had an operating system PC DOS 4 01 built into ROM rather than loading it from a hard drive The ROM disk would then load a 4 quad screen which allowed users to access help rapidly launch pre installed software connect online and access files on the hard drive It was possible to have the computer boot from the hard drive if the operating system was upgraded and IBM provided a DOS 6 22 compatible version of the 4 quad program that could be launched from the hard drive if users wished to continue using it 5 Model 2133 Edit IBM PS 1 2168 The 2133 series PS 1 computers can be split into the following major hardware categories 6 7 Model MB FRU CPU RAM SIMM Video chip VRAM Hard Drive Notes2133 711 93F2397 Intel 80386SX 25 MHz 2 MB 2 72 Pin FPM 256KB 59G9567 85 MB IDE 2133 811 Intel 80386SX 25 MHz 4 MB 85 MB IDE2133 13 Intel 80386SX 25 MHz 2 MB 2x72 Pin FPM 256KB 2133 W13 Intel 80386SX 25 MHz 2 MB 129 MB IDE2133 13T 65G3766 Intel 80486SX 25 MHz 4 MB 2 72 Pin FPM 256KB 93F2329 129 MB IDE 2133 43 34G1885 Intel 80486SX 20 MHz 4 MB 2 30 Pin FPM 512KB 93F2329 129 MB IDE 2133 50 34G1848 Intel 80486SX 25 MHz 4 MB 2 30 Pin FPM 512KB 93F2329 129 MB IDE 2133 53 34G1848 Intel 80486SX 25 MHz 4 MB 2 30 Pin FPM 512KB 93F2329 129 MB IDE 2133 652 Intel 80486SX 33 MHz 4 MB 4 72 Pin FPM Cirrus CL GD5424 512KB 84G3927 171 MB IDE 2133 575 Intel 80486DX 33 MHz 4 MB 4 72 Pin FPM 512KB 170 MB IDE2133 594 Intel 80486DX2 66 MHz 4 MB 4 72 Pin FPM 512KB 253 MB IDE2133 E11 Intel 80386SX 25 MHz 2 MB 2 72 Pin FPM Cirrus CL GD5424 512 KB 85 MB IDE Canada models English model2133 F11 Intel 80386SX 25 MHz 2 MB 2 72 Pin FPM Cirrus CL GD5424 512 KB 85 MB IDE Canada models French model2133 E43 Intel 80486SX 20 MHz 2 MB 8 30 Pin FPM Tseng ET4000 512 KB 129 MB IDE Canada models English model2133 F43 Intel 80486SX 20 MHz 2 MB 8 30 Pin FPM Tseng ET4000 512 KB 129 MB IDE Canada models French model2133 E53 Intel 80486SX 25 MHz 2 MB 8 30 Pin FPM Tseng ET4000 512 KB 129 MB IDE Canada models English model2133 F53 Intel 80486SX 25 MHz 2 MB 8 30 Pin FPM Tseng ET4000 512 KB 129 MB IDE Canada models French modelPost DOS in ROM models Edit On May 11 1993 IBM introduced a new generation of the PS 1 line 8 Later PS 1s featured standard LPX architecture motherboard Many of these later PS 1s shipped from the factory with MS DOS and Microsoft Windows rather than IBM s PC DOS or OS 2 An early 2133 model did come preloaded with OS 2 2 1 This was because IBM targeted OS 2 for high end computing machines with more power Discontinuation EditThe PS 1 line was discontinued in 1994 and replaced with the Aptiva line which was architecturally very similar to the later models of the PS 1 but with a more marketing friendly name Aptivas were sold in the United States until early 2000 when price pressures made the line unprofitable and IBM withdrew from the retail desktop PC market entirely See also EditIBM PC IBM PC compatible IBM PC clone List of IBM products PS 2 ThinkPad ThinkCentre IBM AptivaReferences Edit Lewis Peter H 1993 10 12 PERSONAL COMPUTERS I B M Puts More Power in PS 1 s The New York Times ISSN 0362 4331 Retrieved 2017 07 01 Ed Scannell 2 July 1990 PS 1 Targets Elusive Market InfoWorld Vol 12 InfoWorld Media Group Inc p 8 ISSN 0199 6649 a b Jonathan Matzkin 17 December 1991 Are Home PCs Good Enough For Your Friends PC Magazine Vol 10 Ziff Davis Inc p 195 ISSN 0888 8507 PS 1 2121 System Information Document ID MWER 3S2UQG PS 1 After installing MS DOS 6 22 can I restore my 4 quadrant menu screen Document ID DETR 3UFPEY PS 1 2133 18A 21C 23C 52D SL B Service parts IBM 1999 03 08 Retrieved 2008 06 14 Hardware Maintenance Service for PS1 computer Machine Types 2133 2155 and 2168 IBM Corporation March 1993 63G2028 a href Template Cite journal html title Template Cite journal cite journal a Cite journal requires journal help Lewis Peter H 1993 05 11 PERSONAL COMPUTERS From Stepchild to Favorite Son The New York Times ISSN 0362 4331 Retrieved 2017 07 01 External links EditIBM Archives IBM PS 1Preceded byIBM PCjr IBM Personal Computers Succeeded byIBM Aptiva Retrieved from https en wikipedia org w index php title IBM PS 1 amp oldid 1123134212, wikipedia, wiki, book, books, library,
