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• CPU:  Intel 8086 at 8 MHz
• Memory: 128 KB RAM standard, expandable up to 640 KB
• Storage: Optional 10 MB or 20 MB hard disk
• Video: Proprietary video adapter supporting CGA and high-resolution (up to 640×400 pixels) graphics
• Olivetti dual-sync color monitor (proprietary connector)
• 8-bit ISA expansion slots (7 total)
• Parallel and serial ports
• Detachable keyboard with function keys
• Optional mouse and printer accessories

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  Operating System: primarily ran MS-DOS 2.1 and later versions, but it also supported CP/M-86, UCSD-P, PCOS, and, on some models, Xenix and UNIX System V

  
  
• Supported Languages:
  • GW-BASIC (bundled), BASIC, Pascal (via UCSD-P), C, Fortran, and assembly language.
  • Its IBM PC compatibility allowed it to run most DOS-based programming tools and languages of the era, including compilers and interpreters for popular languages like BASIC, Pascal, and C.

• The Olivetti M24 was sold under several names worldwide: as the AT&T PC 6300 in North America, Xerox 6060 in the US, and Logabax 1600 in France, highlighting its international reach and adaptability.
• Its 8 MHz Intel 8086 CPU made it nearly twice as fast as the IBM PC XT, and it was among the first IBM-compatible PCs to offer enhanced graphics (up to 640×400 resolution) with a proprietary dual-sync monitor.
• The M24 featured a unique split-level case design and a video card that doubled as a bridge between the motherboard and the ISA backplane, an unusual engineering solution for the time.
• Early models had function keys on the left side of the keyboard, a layout that later changed to the top row, and the mouse plugged directly into the keyboard—both quirks compared to standard IBM PC layouts.
• Its power supply was distinctive and complex, with a 24V design that made repairs difficult and even hazardous.
• The M24 was a major commercial success in Europe, becoming the continent’s top-selling PC in 1986 and helping Olivetti become the world’s third-largest PC maker that year.
• It is notable for being able to run graphical environments like Windows 3.0 (in real mode), Geoworks Ensemble, and GEM at higher resolutions than most contemporaries.
• The M24 played a pivotal role in establishing IBM PC compatibility as an industry standard and was a turning point for Olivetti after the earlier failure of its proprietary M20 model.
• There are no widely recognized nicknames for the Olivetti M24, but its North American branding as the AT&T PC 6300 is often referenced in vintage computing circles

Arlen Michaels