The IBM PS/2 Note (stylized as PS/2 note or PS/Note) is a series of notebooks announced by IBM in March 1992, half a year prior to the release of the first ThinkPad, the IBM ThinkPad 700.
 | |
| Manufacturer | IBM |
|---|---|
| Introduced | 1992 |
| Processor | Intel 386 |
Background
After the departure of Bob Lawten from IBM, the team at IBM had little development direction after the IBM PS/2 L40SX. James Cannavino pushed for the new notebook series, which fell behind schedule.[1] The N45SL, N51SX and N51SLC were announced on the same day as the IBM PS/2 (color laptop) CL57SX. During this time there was a distinction between notebooks and laptops, where the former are A4 sized and the latter are larger.
The notebooks were modeled after the PS/55 Note which was released by IBM in Japan in April 1991.[2]
Models
N33SX
The N33SX was the first notebook-sized computer from IBM which was announced in 1991.[3] The PS/2 Model N33 SX or PS/2 note N33 sx was based on the AT-bus and had between 2 or 6MB RAM. It has a 9.5" 16-greyscale VGA LCD, a 1.44Mb floppy and expansion ports and a 40Mb or 80Mb HDD, and weighs 5.5 lbs.[4]
N45SL
The PS/Note N45SL was priced at $2,045 and contained a 25MHz 386SL. It had 2MB RAM and a 80[5] or 120MB HDD.[6]
PC Mag considered the display a disappointment, but noted its good design and performance.[5]
It was manufactured by Zenith Data Systems.[7]
N51SX
The PS/2 Model N51SX[8] or PS/2 Note N51SX was a low-end entry model notebook, which contained a slower version of the typical 386SX found in other notebooks. The N51SX was delayed for months.[9]
N51SLC
The PS/2 Model N51SLC or PS/2 Note N51SLC was based on IBM their 368SLC.[9]
Model 425/425C
The PS/Note 425/425C are identical to the ThinkPad 350/350C.[10]
References
- ^ A., Dell, Deborah (2000). ThinkPad: a different shade of blue. Sams. p. 84. ISBN 0-672-31756-7. OCLC 781169669.
{{cite book}}: CS1 maint: multiple names: authors list (link) - ^ Scannell, Ed (23 Dec 1991). "IBM readies 6 portables". InfoWorld.
- ^ "IBM PS/2 Note - Computer - Computing History". The Centre for Computing History. Retrieved 2021-04-20.
{{cite web}}: CS1 maint: url-status (link) - ^ Name (1992-02-25). "IBM UK LAUNCHES COLOUR LAPTOP AS WELL AS NOTEBOOK". Tech Monitor. Retrieved 2021-04-18.
- ^ a b "IBM PS/note N45sl". PC Mag. Ziff Davis, Inc. 1992-12-22.
- ^ "PS/Note N45 SL" (PDF).
{{cite web}}: CS1 maint: url-status (link) - ^ "PS/2 Model N33 SX". Ardent Tool of Capitalism. Retrieved 2021-04-19.
- ^ "Personal System/2 Models N51 SLC and N51 SX" (PDF).
{{cite web}}: CS1 maint: url-status (link) - ^ a b Fitzgerald, Michael (1992-03-30). Going down in history. IDG Enterprise. p. 38.
{{cite book}}:|work=ignored (help) - ^ Hardware Maintenance Manual Volume 1: Laptop, Notebook, Portable and ThinkPad Computers (PDF). p. 205.