$ whois pl-i

PL/I

first released in 1964 · by IBM

$ guessprog --inspect pl-i

year: 1964
paradigm: procedural
family: other
memory: manual
binding: static
safety: weak

PL-I(7)

AUTHORS: IBM
HISTORY: PL/I was designed from 1963 by IBM together with SHARE, its scientific user group, as the one language for the new System/360 mainframes. It set out to serve scientists, who used Fortran, and business programmers, who used COBOL, in a single language with ideas from ALGOL as well. It was first called NPL, for New Programming Language, but the name clashed with Britain's National Physical Laboratory, so it became PL/I. The Multics operating system was largely written in PL/I.
USAGE: A legacy language. PL/I still runs in mainframe applications at banks, insurers and government agencies, and IBM continues to ship a compiler for z/OS, but almost no new projects choose it.
SEE ALSO: PL/I on Wikipedia ↗

$ cat hello.pli

HELLO: PROCEDURE OPTIONS(MAIN);
    DECLARE NAMES(3) CHARACTER(10) VARYING
            INITIAL('FORTRAN', 'COBOL', 'ALGOL');
    DECLARE I FIXED BINARY(31);

    DO I = 1 TO 3;
       PUT SKIP LIST(NAMES(I) || ' INSPIRED PL/I');
    END;
 END HELLO;