factually
Index/Topics/The C Programming Language Book

The C Programming Language Book

The book by Brian Kernighan that popularized the "Hello, World!" program.

Fact-Checks

1 result
Jan 21, 2026
Most Viewed

HelloWORLD.

“Hello, World” is the canonical first program used to demonstrate a language’s basic input/output and syntax: it prints a simple greeting to the screen and serves as a sanity check that the toolchain ...