A sequence of structured subsets of PL/I

Authors:
Richard C. Holt;David B. Wortman
Affiliations:
Computer Systems Research Group, University of Toronto;Computer Systems Research Group, University of Toronto
Venue:
SIGCSE '74 Proceedings of the fourth SIGCSE technical symposium on Computer science education
Year:
1974

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Abstract

This paper gives a brief introduction to a sequence of subsets of the PL/I language that has been designed for the purpose of teaching introductory computer, programming. The six subsets, called SP/1, SP/2, ..., SP/6, restrict PL/I to language features which the authors feel encourage good programming habits. Each subset introduces new language features while retaining features introduced in earlier subsets.