Hello World in PL/I
Every programming journey starts with Hello World. Let’s write our first PL/I program using the Iron Spring PL/I compiler - a modern, free compiler that brings this classic mainframe language to …
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Variables and Types in PL/I
PL/I was designed in 1964 to serve scientific, commercial, and systems programmers all at once, and its type system reflects that ambition. Where FORTRAN gave you INTEGER and REAL and COBOL gave you …
Operators in PL/I
Operators are the verbs of an expression - they take values and combine them into new ones. PL/I, true to its “one language for everything” ambition, ships a broad and consistent operator …
Read more →Control Flow in PL/I
Control flow is how a program decides what to do and how many times to do it. PL/I, designed in 1964 as IBM’s “one language to rule them all,” was one of the earliest mainstream …
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