CAL (programming language)

<p>CAL, short for Conversational Algebraic Language, was a <a href="/facts/Programming_language/cWTYbgWa">programming language</a> and <a href="/facts/Integrated_development_environment/jbEINSQf">system</a> designed and developed by <a href="/facts/Butler_Lampson/PEU8LN9X">Butler Lampson</a> at <a href="/facts/University_of_California,_Berkeley/MXVEjklr">Berkeley</a> in 1967 for the <a href="/facts/SDS_940/sXGtoKny">SDS 940</a> <a href="/facts/Mainframe_computer/nrBR6rWa">mainframe computer</a>. CAL is a version of the seminal <a href="/facts/JOSS/GXAbsQHY">JOSS</a> language with several cleanups and new features to take advantage of the SDS platform.
</p><p>The Berkeley SDS was used for the development of the <a href="/facts/Tymshare/r0kX2qjs">Tymshare</a> commercial <a href="/facts/Time-sharing/LE5XT9Go">time-sharing</a> platform and an improved version of CAL was offered as a programming environment to its customers in 1969. Although CAL saw "almost no use", it had a lasting impact by influencing the design of <a href="/facts/Tymshare_SUPER_BASIC/rPRvC92b">Tymshare SUPER BASIC</a> which copied a number of its features. Some of those features, in turn, appeared in <a href="/facts/BASIC-PLUS/WGBBVyoK">BASIC-PLUS</a> on the <a href="/facts/PDP-11/9HkGUzFn">PDP-11</a>, which is the direct ancestor of <a href="/facts/Microsoft_BASIC/SuctFIyc">Microsoft BASIC</a>.
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CAL (programming language) open-in-new

CAL (programming language)