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.
Read more about Hello World Program: Purpose, History, Variations
Famous quotes containing the words world and/or program:
“Aunt Sally she was one of the mixed-upest looking persons I ever see; except one, and that was uncle Silas, when he come in, and they told it all to him. It kind of made him drunk, as you may say, and he didn’t know nothing at all the rest of the day, and preached a prayer meeting sermon that night that give him a rattling ruputation, because the oldest man in the world couldn’t a understood it.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)
“[T]he asphaltum contains an exactly requisite amount of sulphides for production of rubber tires. This brown material also contains “ichthyol,” a medicinal preparation used externally, in Webster’s clarifying phrase, “as an alterant and discutient.””
—State of Utah, U.S. public relief program (1935-1943)