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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.

== Purpose ==

Hello World is a traditional exercise for beginning programmers.  

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

== See also ==

* [[Computer programming]]
* [[Programming language]]

== External links ==

* [https://en.wikipedia.org/wiki/%22Hello,_World!%22_program "Hello, World!" program] @ Wikipedia