JEAN

JEAN was a dialect of the JOSS programming language developed for and used on ICT 1900 series computers in the late 1960s and early 1970s; it was implemented under the MINIMOP operating system. It was used at universities including the University of Southampton.^[1] The name was an acronym derived from "JOSS Extended and Adapted for Nineteen-hundred". It was operated interactively from a Teletype terminal, as opposed to using batch processing.

JEAN programs could include expressions (such as A*(B+C)), commands (such as TYPE to display the result of a calculation) and clauses (such as FOR, appended to an expression to evaluate it repeatedly).^[2]

References

^ Rees, M.J. (April–June 1971). "Some improvements to the MINIMOP multi-access operating system". Software: Practice and Experience. 1 (2). Wiley InterScience: 175–188. doi:10.1002/spe.4380010208. Archived from the original on 5 January 2013. Retrieved 24 April 2009.
^ ICL (1970). "Chapter 3. JEAN". User notice: Introduction to MOP – Technical Publication 4194 (PDF). Reading, Berkshire: International Computers Limited Technical Publications Service.

[1] Rees, M.J. (April–June 1971). "Some improvements to the MINIMOP multi-access operating system". Software: Practice and Experience. 1 (2). Wiley InterScience: 175–188. doi:10.1002/spe.4380010208. Archived from the original on 5 January 2013. Retrieved 24 April 2009.

[2] ICL (1970). "Chapter 3. JEAN". User notice: Introduction to MOP – Technical Publication 4194 (PDF). Reading, Berkshire: International Computers Limited Technical Publications Service.

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