IBM Model 8573-121

This one is often called luggable, because of its 9 kg weight. This "portable" computer did not "lay down" like most of the others was accustomed to do. No, it was standing on one side. When you opened it and lowered the side down, the keyboard was in the cover. In front of you, the computer was standing with its red-and-brown plasma screen, which could show 16 shades of grey. The screen could be drawn out at the bottom for good performance, because it could be angled.

To the right of the screen was a 3.5" disk drive. It came out at the top, because it also could be angled, and the size was 1.44 MB. Really different from what one is accustomed today.

This machine is one of the two so-called "luggable" models that IBM produced as a part of the PS/2 family. In the 8573-121 configuration you got a 386DX CPU running at 20MHz paired with a 120MB hard disk. All things considered this was a high end mobile computer system in its day. It runs from AC power only and has no battery inside. Both the P70 and P75 "luggable" systems were very expensive when new. As a result, neither unit is overly common...so if you can find one, it may well be worth picking up.

The display panel is a plasma type and displays everything in a brilliant orange color. It is capable of 16 color VGA output at most. The machine's onboard graphics are also VGA and can drive an external CRT display in up to 16 colors at 640x480.

386DX-20 CPU
8MB RAM
120MB IBM DBA ESDI hard disk
1.44 Mb Floppy Drive

It has a part number of 23F3055 and although the model was introduce in 1989, this machine was made in Japan in January 1990 and was very kindly donated by Chris Gladman

Manufacturer: IBM
Date: January 1990

Other Systems Related To IBM Model 8573-121:

Item Manufacturer Date
IBM 5150 with CGA Monitor IBM Unknown
IBM System 370 Control Panel IBM 1970
IBM 370/138 IBM 30th June 1976
IBM Displaywriter IBM 1980
IBM 5161 IBM 1981
IBM 5150 IBM 1st September 1981
IBM 5160 XT IBM 1st January 1983
IBM 5170 / PC AT IBM 1984
IBM 5155 Portable Computer IBM 1st June 1984
IBM 5140 Convertible Computer IBM April 1986
IBM PS/2 Model 70 IBM 1987
IBM PS/2 Model 30 286 IBM April 1987
IBM PS/2 Model 30 (FD/HD) IBM April 1987
IBM PS/2 Model 30 (Dual FD) IBM April 1987
IBM PS/2 Model 80 (8580-071) IBM 2nd April 1987
IBM PS/2 Model 55SX IBM October 1987
IBM PS/1 IBM 1990
IBM RS/6000 Model 550L IBM 1990
IBM PS/1 Machine 2133 Model 114 IBM 1990
IBM RS/6000 320 IBM 15th February 1990
IBM PS/2 Note IBM 1991
IBM PS/2 Model 95 (8595) IBM 1991
IBM ThinkPad 2523-710T IBM 1993
IBM RS/6000 250 IBM 1993
IBM ThinkPad 701CS IBM 1995
IBM ThinkPad 755CEX IBM March 1995
IBM RS/6000 SP2 Type 7025 IBM 1996
IBM ThinkPad 365XD IBM 1996
IBM RS/6000 Model 7043 604e IBM 1998
IBM 8363 NetVisa Thin Client IBM November 2000
IBM ThinkPad R30 2656 IBM 2001
IBM Thinkpad 2628-STG IBM 2001

This exhibit has a reference ID of CH30497. Please quote this reference ID in any communication with the Centre for Computing History.

 

IBM Model 8573-121


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