Where does “Hello World” come from?
“Hello world!” was the most used phrase in testing computer programs. “hello world” was influenced by a seminar book called “The C Programming Language”. In this book, “hello world” was used to to output something from the code. This was inherited from a Bell Laboratories internal memorandum written by Brian Kernighan on 1974. The original version of this started without exclamation and with small letters. This was later changed to “Hello world!” or “Hello World!” or “HELLO WORLD!” etc…
