Mdl

2 definitions found

From Virtual Entity of Relevant Acronyms (Version 1.9, June 2002) [vera]:

  MDL
       Microstation Development Language (CAD)
       
       

From The Free On-line Dictionary of Computing (27 SEP 03) [foldoc]:



  MDL
       
          (Originally "Muddle").  C. Reeve, {Carl Hewitt} and {Gerald
          Sussman}, Dynamic Modeling Group, MIT ca. 1971.  Intended as a
          successor to Lisp, and a possible base for Planner-70.
          Basically LISP 1.5 with data types and arrays.  Many of its
          features were advanced at the time (I/O, interrupt handling
          and coroutining), and were incorporated into later LISP
          dialects ("optional", "rest" and "aux" markers).  In the mid
          80's there was an effort to use bytecoding to make the
          language portable.  CLU was first implemented in MDL.  Infocom
          wrote Zork in MDL, and used it as the basis for the ZIL
          interpreter.
       
          Implementations exist for ITS, {TOPS-20}, BSD 4.3, Apollo
          Domain, SunOS and A/UX.
       
          ["The MDL Programming Language", S.W. Galley et al, Doc
          SYS.11.01, Project MAC, MIT (Nov 1975)].