PL/I

PL/I (Programming Language One, pronounced /piː ɛl wʌn/ and sometimes written PL/1) is a <a href="/facts/Procedural_programming/7r5xz7kx">procedural</a>, <a href="/facts/Imperative_programming/6b5dUnE1">imperative</a> computer <a href="/facts/Programming_language/cWTYbgWa">programming language</a> initially developed by <a href="/facts/IBM/QszA7nwd">IBM</a>. It is designed for scientific, engineering, business and system programming. It has been in continuous use by academic, commercial and industrial organizations since it was introduced in the 1960s.
A PL/I <a href="/facts/American_National_Standards_Institute/p3d1TQCb">American National Standards Institute</a> (ANSI) <a href="/facts/Technical_standard/P4orT1SM">technical standard</a>, X3.53-1976, was published in 1976.
PL/I's main domains are <a href="/facts/Data_processing/74EKCDAq">data processing</a>, <a href="/facts/Numerical_computation/QT9cYa9z">numerical computation</a>, <a href="/facts/Scientific_computing/PnVD19hw">scientific computing</a>, and <a href="/facts/System_programming/urTteIsW">system programming</a>. It supports <a href="/facts/Recursion/CxSKxJoW">recursion</a>, <a href="/facts/Structured_programming/zA8b8dP1">structured programming</a>, <a href="/facts/Linked_data_structure/l0C0Xm0C">linked data structure</a> handling, <a href="/facts/Fixed-point_arithmetic/pd3RU72P">fixed-point</a>, <a href="/facts/Floating-point/eIckahxe">floating-point</a>, <a href="/facts/Complex_arithmetic/2w7mqI7e">complex</a>, <a href="/facts/String_(computer_science)/4ChJu5WS">character string</a> handling, and <a href="/facts/Bit_string/PAfzTEHB">bit string</a> handling. The language syntax is English-like and suited for describing complex data formats with a wide set of functions available to verify and manipulate them.

PL/I open-in-new

PL/I