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PL/I

Official website (https://www.ibm.com/products/pli-compiler-zos)

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PL/I

PL/I (Programming Language One, pronounced and sometimes written PL/1) is a procedural, imperative computer programming language initially developed by IBM. 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.

Key facts

Programming language.name: PL/I
Programming language.paradigm: Procedural, imperative, structured
Programming language.designers: IBM,SHARE Language Development Committee,ISO
Programming language.dialects: See dialects
Programming language.influenced by: COBOL, Fortran, ALGOL 60
Programming language.influenced: Control Language, PL/M, PL/S, PL-6, PL.8, Rexx, SAS
Programming language.wikibooks: PL/I

via Wikipedia infobox

Official website

IBM Enterprise PL/I for z/OS

Enterprise PL/I compiler provides the essential tools for creating and maintaining mission-critical PL/I applications for execution on IBM Z.

Link to the official site · 4,363 chars · not written by Vinony

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Article

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PL/I (Programming Language One, pronounced and sometimes written PL/1) is a procedural, imperative computer programming language initially developed by IBM. 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 American National Standards Institute (ANSI) technical standard, X3.53-1976, was published in 1976.

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Connections

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Categories

Compiled programming languages Concurrent programming languages IBM software PL/I programming language family Procedural programming languages Programming languages created in 1964 Programming languages with an ISO standard Structured programming languages Systems programming languages

Described at

TAPoR

Joyce, James. "Extension to PL/I For Natural-Language Processing. " Computers and the Humanities 6.5 (1972): 271-276. Web . Raskin, Jeffrey S. "Programming Languages for the Humanities. " Computers and the Humanities 5.3 (1971): 155-158. Web . Sowa, Cora Angier and John F. Sowa. "Thought Clusters in Early Greek Oral Poetry. " Computers and the Humanities 8.3 (1974): 131-146. Web . Wachal, Robert S. "The Machine in the Garden: Computers and literary scholarship, 1970. " Computers and the Humanities 5.1 (1970): 23-28. Web . Rice, Sandra. "Software Review: INQUIRER III (Edinburgh Edition) A Computer Based System for Content Analysis. " Computers and the Humanities 10.6 (1976): 332. Web . PL/I (Programming Language/One) is an early programming language developed by IBM for their 360/370 machines (Oakman 155). It was a multipurpose language adaptable for business analysis, scientific data processing and character handling (155), and could handle data stored on magnetic tape or on disks (Heller and Logemann 24). It was commonly available due to both wide adoption of IBM's equipment, and other companies like Honeywell and General Electric followed IBM's lead in making the language available on their machines (Oakman 155). PL/I was commonly used for natural language processing within the Humanities, second only to FORTRAN for language processing applications due to its wide availability (Joyce 271). By 1972, PL/I was used on 40% of such projects, with FORTRAN coming in at 50% (271), and scholar James Joyce considered PL/I the better suited of the two languages as it accommodated business data in its design, rather than the strictly formula-oriented scientific bent of FORTRAN (271). Humanities programmers are concerned primarily with symbolic data as opposed to numbers. They wish to manipulate sentences and texts, or strings of their own notations...We observe that PL/I allows data to take the form of strings of symbols. Thus in a PL/I program one can generate any desired text or coding schemes, and move and save strings for accumulating dictionaries and preparing output text. Moreover, PL/I provides the essential minimum of operations on strings of symbols. (Heller and Logemann 21) Joyce, James. "Extension to PL/I For Natural-Language Processing. " Computers and the Humanities 6.5 (1972): 271-276. Web .

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