CII 10070

The CII 10070 is a discontinued computer system from the French company CII. It was part of the first series of computers manufactured in the late 1960s under Plan Calcul.

The 10070 was a rebadged an SDS (Scientific Data Systems) Sigma 7. In addition to the Sigma software, a new operating system was developed by teams from INRIA.

The 10070 was optimized for scientific calculation. It had had 32-bit words, byte addressing, and 16 index registers. It could handle both batch processing, and time-sharing. It also had mémoire topographique as a standard feature, similar to virtual memory except that it was only intended for instant memory-to-memory remapping for performance reasons, with no support for managing swapping to disk. This was managed by the time-sharing monitor.

The 10070 served as the basis for the design of the Iris 80 series, which was completely manufactured by CII.

Software

Operating systems

The CII 10070 ran several SDS and locally developed operating systems:

  • BPM (Batch Processing Monitor), single-stream batch processing system with independent tasks, called symbionts, to process card and printer inputs and outputs. This system was supplied by SDS.
  • BTM time sharing system from SDS.
  • Siris 7 from CII, a version of Siris 8 for the Iris 80.
  • An experimental system, Ésope, was developed at IRIA.[1]

Languages and utilities

Most of the software for the 10070 also came from SDS:

Notes
  1. There is no record of a PL/I compiler from SDS

References
  1. C. Bétourné, J. Ferrie, C. Kaiser, S. Krakowiak, J. Mossière, Ésope : une étape de la recherche française en systèmes d’exploitation (1968-72)CHIR 4004, Rennes 2004 |url=https://www.aconit.org/histoire/colloques/colloque_2004/esope.pdf


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