The DICT Development Group

Search for:
Search type:

Database copyright information
Server information

2 definitions found
 for PL/I
From V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016) :

         Programming Language One (DEC), "PL/I"

From The Free On-line Dictionary of Computing (30 December 2018) :

      Programming Language One.
     An attempt to combine the best features of Fortran, COBOL
     and ALGOL 60.  Developed by George Radin of IBM in 1964.
     Originally named NPL and Fortran VI.  The result is large but
     elegant.  PL/I was one of the first languages to have a formal
     semantic definition, using the Vienna Definition Language.
     EPL, a dialect of PL/I, was used to write almost all of the
     Multics operating system.  PL/I is still widely used
     internally at IBM.  The PL/I standard is ANS X3.53-1976.
     PL/I has no reserved words.  Types are fixed, float,
     complex, character strings with maximum length, bit strings,
     and label variables.  Arrays have lower bounds and may be
     dynamic.  It also has summation, multi-level structures,
     structure assignment, untyped pointers, side effects and
     aliasing.  Control flow constructs include goto; do-end
     groups; do-to-by-while-end loops; external procedures;
     internal nested procedures and blocks; generic procedures
     and exception handling.  Procedures may be declared
     recursive.  Many implementations support concurrency
     ('call task' and 'wait(event)' are equivalent to fork/join)
     and compile-time statements.
     LPI is a PL/I interpreter.
     ["A Structural View of PL/I", D. Beech, Computing Surveys, 2,1
     33-64 (1970)].

Contact=webmaster@dict.org Specification=RFC 2229