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 Front panel of an IRIS 80 from the ACONIT computer museum, Grenoble | |
| Manufacturer | CII |
|---|---|
| Type | Mainframe computer |
| Release date | 1971 (announced in 1969) |
| Discontinued | 1976 |
| Units sold | About a hundred |
| Operating system | Siris 8 |
| CPU | Integrated (3rd generation), 32 bits, available in single and multiple configurations @ 650ns cycle (~1.5 MHz) |
| Memory | 4 MB |
| Storage | Hard drives (25 to 200 MB) |
| Predecessor | CII Iris 50 |
| Successor | CII-HB DPS-7 |
The CII Iris 80 computer is the most powerful computer made by the French company CII as part of Plan Calcul. It was released in 1970 and had roughly the same capabilities and performance than its main rivals in Europe: the IBM 360/75 and 360/85.[1]
The Iris 80 is the backward-compatible successor to the CII 10070, a licensed SDS Sigma-7, and to the Iris 50, an in-house development from the Sigma-9 architecture. It essentially upgraded the Iris 50 with modern integrated circuits, as well as multiprocessor capabilities.[1] Its operating system, Siris 8, was also upgraded from Siris 7 to leverage the new capabilities of the Iris 80.
Because of a policy of national preference that the Plan Calcul imposed on the public sector, this computer was installed at four of the approximately twenty French university computing centers in the mid-1970s, as well as INRIA and other research organizations.
About a hundred Iris 80s were delivered, including 27 dual processors.
The CS 40, used for telephone switching, was derived from it.
The original successors to the Iris 80 was supposed to be the CII / Unidata X4 and X5 set to be released in 1976.[1][2] However, after the eventual merger of CII with Honeywell-Bull, the Iris 80 was instead succeeded by the DPS-7, which included an Iris 80 and Siris 8 emulation mode to ensure compatibility.[3]
- ^ a b c "Fédération des Equipes Bull - CII Iris 80". www.feb-patrimoine.com. Retrieved 2023-08-02.
- ^ "The Rise and Fall of Philips Data Systems, pp.89-98 on Unidata". Retrieved 2024-08-12.
- ^ "CII-Honeywell-Bull - GCOS7: Emulators". www.feb-patrimoine.com. Retrieved 2023-08-16.