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CAL, short for Conversational Algebraic Language, was a programming language and system designed and developed by Butler Lampson at Berkeley in 1967 for the SDS 940 mainframe computer. CAL is a version of the seminal JOSS language with several cleanups and new features to take advantage of the SDS platform.
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cal joss type used version direct basic could mode 1969 sds features statements part 10 number functions tymshare set syntax
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