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A "Hello, World!"program is usually a simple computer program that emits (or displays) to the screen (often the console) a message similar to "Hello, World!".A small piece of code in most general-purpose programming languages, this program is used to illustrate a language's basic syntax.
New BASIC programmers on a home computer might start with a simple program, perhaps using the language's PRINT statement to display a message on the screen; a well-known and often-replicated example is Kernighan and Ritchie's "Hello, World!" program:
BCPL is the language in which the original "Hello, World!" program was written. [6] The first MUD was also written in BCPL . Several operating systems were written partially or wholly in BCPL (for example, TRIPOS and the earliest versions of AmigaDOS). BCPL was also the initial language used in the Xerox PARC Alto project.
Microsoft Small Basic is a programming language, interpreter and associated IDE. Microsoft 's simplified variant of BASIC , it is designed to help students who have learnt visual programming languages such as Scratch learn text-based programming. [ 8 ]
The "Hello, World!" program is used to illustrate a language's basic syntax. The syntax of the language BASIC (1964) was intentionally limited to make the language easy to learn. [6] For example, variables are not declared before being used. [7] Also, variables are automatically initialized to zero. [7]
The PR# statement can be used to redirect output to the printer (e.g. 10 PR# x: PRINT "Hello!") where x is the slot number containing the printer port card. To send a BASIC program listing to the printer, the user types PR#x:LIST. Using PR# on a slot with a disk drive (usually in slot 6) causes Applesoft to boot the disk drive.
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"Hello, World!" program by Brian Kernighan (1978) The "hello, world" example that appeared in the first edition of K&R has become the model for an introductory program in most programming textbooks. The program prints "hello, world" to the standard output, which is usually a terminal or screen display. The original version was: [36]