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
100 lines
3.9 KiB
Markdown
100 lines
3.9 KiB
Markdown
---
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title: Gespac Gescomp 720 / 730
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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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- Swiss
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years:
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- '1982'
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cpus:
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- '6800'
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params:
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name: Gescomp 720 / 730
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image: /media/museum/photos/gespac_gescomp-720-730_1s.jpg
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company: /companies/gespac
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company_name: Gespac
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specs:
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- label: NAME
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value: Gescomp 720 / 730
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- label: MANUFACTURER
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value: Gespac
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- label: TYPE
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value: Professional Computer
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- label: ORIGIN
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value: Swiss
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- label: YEAR
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value: ? 1982
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- label: KEYBOARD
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value: Full stroke keyboard with numeric keypad and function keys
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- label: CPU
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value: 6800 / 6809 / Z80
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- label: RAM
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value: 64 KB
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- label: GRAPHIC MODES
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value: 256x192
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- label: COLORS
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value: 'yes'
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- label: SOUND
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value: unknown
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- label: BUILT IN MEDIA
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value: 2 x 5.25'' disk drives (400 KB or 800 KB each) + optional 5 MB Winchester hard disk
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- label: OS
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value: GESDOS (6800-6809), CP/M 2.2, GESBOS (Z80)
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- label: POWER SUPPLY
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value: Built-in PSU
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tabs:
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- photos
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- adverts
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forum_thread: 1305
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photos:
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- title: GESCOMP 720-730
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subtitle: ''
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text: ''
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image: null
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- title: GESCOMP
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subtitle: ''
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text: |-
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Model not really known, but this is one is based on a 6809 CPU.
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Thanks to F1FCO for this picture
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image: null
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adverts:
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- title: FRENCH ADVERT (JUNE 1982)
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subtitle: ''
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text: ''
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image: null
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oc_id: 1340
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source:
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url: https://web.archive.org/web/20230609210709/http://www.old-computers.com/museum/computer.asp?c=1340
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date: '2023-06-09'
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---
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GESPAC SA was a Swiss company who designed the G-64/96 Bus in 1979. This interface bus concept provides a simple way to interface microprocessor modules with memory and peripheral modules on a parallel bus. The G-64/96 Bus uses a simple, yet modern and powerful interface scheme which allows a higher level of functionality from the single height Eurocard form factor. The low overhead of the G-64/96 Bus interface greatly eases the design of custom boards by the User. This is why, even many years after its invention, the G-64/96 Bus is still widely used in the industry.
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The G-64/96 bus concept supports the following features:
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\- Processors manufacturer independent interface - 8 and 16-bit data transfers - Up to 32 Mbyte addressing capability - Multiple DMA operations - Non-vectored and vectored interrupts - A parallel decentralized arbitration scheme (G-96: multi-processors) - A message passing mechanism (G-96: multi-processors)
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In 1982, GESPAC SA released two computers based on the G64 Bus: Gescomp 720 and Gescomp 730, mainly targeted as industrial use.
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These modular systems could use a wide variety of G64 compatible boards. They could be powered by a 68000/6809 CPU, or a ZX80 CPU or a 8085 CPU !
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Depending on the CPU installed, the computer could run different operating systems:
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\- 68800-6809 -> GESDOS, offering an editor, macro-assembler, Basic, Graphical Basic, 6809 emulator, IEEE 4888, Centronics printer interface\
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\- Z80-8085 -> CP/M 2.2, mainly used for wordprocessing and CP/M tools\
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\- Z80 -> GESBOS, offering a GESBOL interpreter, GESBOL compilator + many professional applications.
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Each computer had 64 KB RAM and came in different mass storage configurations:\
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\- two 5.25'' floppy disk drives (400 KB each)\
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\- two 5.25'' floppy disk drives (800 KB each)\
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\- one 5.25'' floppy disk drive + 5 MB Winchester hard disk
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Apparently the computer had a colour graphic card offering 512x256 pixels resolution.
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In 1982, GESPAC NETWORK was available. It was a communication network solution for Gespac Bus based systems. Up to 32 computers could be connected, to a maximum distance of 300m and with a transmission speed rate of 800 KB/s.
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<table> <tr> <td></td> <td>We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.</td> <td></td> </tr> </table>
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