Check the listing for details. Hello World! 1.25” Computer Meme Badge Pinback Coding Baby Hat Pin. Condition: New. Listed at 2.25 USD. HELLO, WORLD! Computer Programming Joke Button One 1.25" button with the phrase 'Hello, World!’ in a green-on-black bit-mappy font. A Hello, World! program generally is a computer program that outputs or displays the message "Hello, World!". Because such a program is very simple in most programming languages, it is often used to illustrate the basic syntax of a programming language and is often the first program that those learning to code write. “Hello World” may also refer to a song by the Iamus computer; Hello World: The Motown Solo Collection, a compilation album by Michael Jackson; Helloworld Travel, an Australian-based travel agency; or the upcoming Japanese animated film directed by Tomohiko Itō (“Sword Art Online The Movie: Ordinal Scale”). Wear this button while compiling, while coding, while decoding, while trapped in the Matrix, or while dating! Sure to be a hit in the maternity ward (do not let babies play with sharp objects). See our store for more interesting buttons - combine orders to save shipping! Click Here Pin back on each button. US penny for scale. Penny NOT included in price of button. 20 GOTO 10