yann64andClaude Opus 5.5
b274874139
1,289 discussions, 9,527 archived comments; pages no longer carry the comments themselves. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ
116 lines
4.7 KiB
Markdown
116 lines
4.7 KiB
Markdown
---
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title: Olivetti M24
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categories:
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- Computers
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types:
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- Professional Computer
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origins:
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- Italy
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years:
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- '1984'
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cpus:
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- Intel 8086
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params:
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name: M24
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image: /media/museum/photos/olivetti_m24_1.jpg
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company: /companies/olivetti
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company_name: Olivetti
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specs:
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- label: NAME
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value: M24
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- label: MANUFACTURER
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value: Olivetti
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- label: TYPE
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value: Professional Computer
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- label: ORIGIN
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value: Italy
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- label: YEAR
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value: '1984'
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- label: BUILT IN LANGUAGE
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value: MS-DOS and GW-Basic delivered on disks
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- label: KEYBOARD
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value: |-
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Separated full-stroke keyboard, 102 keys, numeric keypad, 18 function keys\
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A standard IBM keyboard (83 keys) was also proposed
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- label: CPU
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value: Intel 8086
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- label: SPEED
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value: 8 MHz
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- label: CO-PROCESSOR
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value: optional 8087 arithmetic co-processor, NEC 6845 video generator
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- label: RAM
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value: 128 Kb (up to 640 Kb)
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- label: VRAM
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value: 40 / 80 x 25
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- label: ROM
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value: 16 Kb
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- label: TEXT MODES
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value: 40 x 25, 80 x 25
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- label: GRAPHIC MODES
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value: 320 x 200 with 4 colors / 640 x 200 monochrom / 640 x 400 monochrom
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- label: COLORS
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value: '16'
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- label: SOUND
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value: Tone Generator
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- label: SIZE / WEIGHT
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value: 16 x 38 x 37 cm
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- label: I/O PORTS
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value: Centronics, RS232c, mouse, keyboard
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- label: BUILT IN MEDIA
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value: One or Two 5.25'' disk-drives (360k or 720k), optional 10 Mb hard-disks
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- label: OS
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value: MS DOS 2.1, Concurrent CP/M 86, UCSD-P, PCOS
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- label: POWER SUPPLY
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value: Built-in PSU, 135w
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- label: PERIPHERALS
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value: Hard-disk, IEEE 488, RS 422, RS 232, PC Net boards, IBM 3278 coaxial network board, mouse
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- label: PRICE
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value: |-
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2 disk-drives system : 3535 (France, 84)\
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color monitor, 10 Mb hard-disk : 8250 (France, 85)
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tabs:
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- photos
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- adverts
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forum_thread: 529
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photos:
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- title: M24 SP
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subtitle: ''
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text: |-
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The M24 SP is a "super" M24 system. Its 8086 CPU is running at 10 Mhz (instead of 8Mhz), it has 512k RAM and a 20Mb hard-disk.
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Note the front of the main case is slightly different.
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image: /media/museum/photos/olivetti_m24sp_1.jpg
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adverts:
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- title: US ADVERT, SEPTEMBER 1985
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subtitle: ''
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text: ''
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image: /media/museum/pubs/olivetti_m24_pub_s1.jpg
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- title: FRENCH ADVERT (1984)
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subtitle: ''
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text: ''
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image: /media/museum/pubs/olivetti_m24_pub_1.jpg
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- title: 'FRENCH ADVERT #2 (JUNE 1985)'
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subtitle: ''
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text: ''
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image: /media/museum/pubs/olivetti_pub_docile-compatibles_2.jpg
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oc_id: 535
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source:
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url: https://web.archive.org/web/20230610142244/http://www.old-computers.com/museum/computer.asp?c=535
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date: '2023-06-10'
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---
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This is a highly IBM PC compatible system. It means that it is truely hardware and sotfware compatible with the IBM PC of that time. Back then, all "PC compatible" systems were not exactly 100% compatible... so it was a real marketing argument for the Olivetti M24.\
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There were two true tests to know if a system was really IBM PC compatible : Lotus 1-2-3 and Microsoft Flight Simulator, and the M-24 was running both with no problem.
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But in addition to its good compatibility, the Olivetti M24 was offering more than the IBM PC itself : RS232c and Centronics interface built-in, more complete keyboard, better graphic possibilities (640 x 400) and 7 free expansion slots (instead of 3 for the IBM PC). Even the CPU (8086, real 16-bit) was faster than the 8088 (16-bit with an 8-bit bus) used by the IBM PC.
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It runs under MS-DOS 2.11, CP/M 86, UCSD P-System and even PCOS, the Olivetti OS used on the M20.\
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The 128k RAM can be expanded to 256k or 640k by adding memory directly onboard. It is also possible to connect two optional 10 Mb hard disks (one internal and one external).\
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The Olivetti M24 was sold with a green or yellow phosphore 12" monochrome monitor, or with a color monitor (more expensive, of course). Two keyboards were available : one absolutly identical to the IBM PC's, and an Olivetti with more keys (102 instead of 83) including 18 functions keys and a complete editing keypad.
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In September 85 appears a new model, the **M24 SP**. It is based on a M24 but its Intel 8086 is running at 10 Mhz, it has 512k RAM (still upgradable to 640k) and a 20Mb hard-disk.
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Conclusion : the Olivetti M24 was the first computer to be fully compatible with the IBM PC and to offer more features than original PC, for a cheaper price !
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The Olivetti M24 was also sold as the [Logabax 1600](/museum/logabax-persona-1600/) in France (Olivetti owned Logabax) and the [ATT PC-6300](/museum/att-pc-6300/)in the USA (Olivetti signed a distribution deal with ATT). As Olivetti was not entirely satisfied with the ATT deal, it also approached Xerox to distribute its computers in the USA.
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