Hello, world
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A "Hello, world" program is usually a simple computer program that outputs a message similar to "Hello, world". The text may be printed out or displayed on a screen. A small piece of code in most gene
A program to output "hello, world", handwritten in the C language and signed by Brian Kernighan (1978)
"Hello World", displayed by a program running on Sony's PlayStation Portable as a proof of concept
Computer numerical control (CNC) machining test in poly(methyl methacrylate) (Perspex)
A "HELLO WORLD" message being displayed through long-exposure light painting with a moving strip of light-emitting diodes (LEDs)
C (programming language)
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C is a general-purpose programming language created in 1972 by Dennis Ritchie. By design, C gives programmers relatively direct access to the features of typical CPU architectures, customized for the
Hello, world
…which violates the spirit of pure functional programming by producing side effects. Languages otherwise able to print "Hello, world" (assembly language, C, VHDL) may also be used in embedded systems, where text output is either difficult (requiring added components or communication with another computer…
Dennis Ritchie (right), the inventor of the C programming language, with Ken Thompson