Hello World Program
A "Hello world" program is a computer program that outputs "Hello, world" on a display device. Because it is typically one of the simplest programs possible in most programming languages, it is by tradition often used to illustrate to beginners the most basic syntax of a programming language, or to verify that a language or system is operating correctly.
In a device that does not display text, a simple program to produce a signal, such as turning on an LED, is often substituted for "Hello world" as the introductory program.
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Famous quotes containing the words world and/or program:
“I am a little world made cunningly
Of elements, and an angelic sprite;
But black sin hath betrayed to endless night
My world’s both parts, and Oh! both parts must die.”
—John Donne (1572–1631)
“Called on one occasion to a homestead cabin whose occupant had been found frozen to death, Coroner Harvey opened the door, glanced in, and instantly pronounced his verdict, “Deader ‘n hell!””
—For the State of Nebraska, U.S. public relief program (1935-1943)