IBM PS/2 L40SX

The IBM PS/2 L40SX was a portable computer made by IBM, as part of the IBM PS/2 series.[1] It was the successor to the IBM PC Convertible.[3] The "SX" in the name refers to its CPU, the Intel 80386SX.

IBM PS/2 L40SX
ManufacturerIBM
Product familyIBM PS/2
TypePortable computer
Release dateMarch 26, 1991 (1991-03-26)[1]
Introductory priceUS$5,995 (equivalent to $10,922 in 2019)[1]
DiscontinuedFebruary 1993 (1993-02)[2]
Operating systemDOS
CPUIntel 80386SX.
Memory2 to 18 MiB
PowerBattery: NiCd
Mass3,49kg
PredecessorIBM PC Convertible
SuccessorThinkPad 700C

Specifications
  • CPU: 20 MHz Intel 386SX
  • Screen: 10" VGA
  • OS: DOS 3.3 or 4.0
  • Disk: IDE drive
  • Bus: ISA

Recall

The Wall Street Journal reported that IBM had received 15 complaints of a short circuit occurring between the circuitry and a conductive coating inside the case which, in some instances, has melted a small hole in the case. The short occurs when the laptop is run on batteries, and IBM reported it will install a fuse to stop overheating. They had to issue a recall for 150,000 machines.[2]

Other models

One year after the announcement of the L40SX, on 24 March 1992, four other notebooks were announced by IBM: N51SX, N51SCL, N45SL and the CL57SX.[4] The CL57SX was the first laptop from IBM that featured a color TFT display.[5]

References
  1. Lewis, Peter H. (1991-03-26). "PERSONAL COMPUTERS; I.B.M.'s 7-Pound Laptop". The New York Times. ISSN 0362-4331. Retrieved 2019-12-22.
  2. InfoWorld. 15. 31 May 1993. p. 97. ISSN 0199-6649.
  3. "IBM to Introduce Its Own Laptop Computer Model". Los Angeles Times. 1991-03-26. Retrieved 2019-12-25.
  4. Dell, Deborah A. (2000). ThinkPad: a different shade of blue. Purdy, J. Gerry. Indianapolis, Ind.: Sams. pp. 89. ISBN 0-585-33046-8. OCLC 45842922.
  5. Reuters (1992-03-25). "BUSINESS TECHNOLOGY; I.B.M. Enters U.S. Notebook PC Market". The New York Times. ISSN 0362-4331. Retrieved 2019-12-22.
Preceded by
IBM PC Convertible		 IBM Personal Computers Succeeded by
IBM ThinkPad 700C
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