Olivetti M21 Portable
Photo 1: tomislav medak, CC BY 2.0, via Wikimedia Commons (Olivetti M21.jpg)
Portable computer, 1984, Olivetti. The M21 is the transportable version of the M24, presented with it in London on 29 March 1984. It packs the same 8086 at 8 MHz, the same enhanced video and the same expansion slots into a suitcase-style case with a built-in 9" amber display and one or two 5.25" drives, with the keyboard clipping over the front. It was one of the fastest portables of its time and fully compatible with the desktop M24.
| Years | 1984 to 1987 |
|---|---|
| Processor | Intel 8086 at 8 MHz |
| RAM | 128 KB, expandable to 640 KB |
| Display | built-in 9" amber CRT, 640 x 400; external monitor output |
| Storage | 1 or 2 x 5.25" floppy drives of 360 KB, or one drive and a 10 or 20 MB hard disk |
| Operating system | MS-DOS 2.11 |
| Ports | RS-232, parallel, expansion slots |
| Weight | about 13 kg |
Documentation
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