"Hello World!" program (nonfiction)

C-language "Hello, World" source code. This first known "Hello, world" snippet from the seminal book The C Programming Language originates from Brian Kernighan in the Bell Laboratories in 1974.

A "Hello World!" program ("Hello, World!", etc.) is a computer program that outputs "Hello World!" (or some variation) on a display device.

It demonstrates that a simple program runs correctly.

Hello World is a traditional exercise for beginning programmers.

Experienced programmers may write a Hello World program when learning a new programming language.

Fiction cross-reference

• Less World, More Hello
• The Man Who Would Not Say Hello World

Nonfiction cross-reference

• Computer program (nonfiction)
• Computer science (nonfiction)

External links:

• "Hello, World!" program @ Wikipedia