Note that brainfuck is typically lowercased except, often, at the start of a sentence. Brainfuck is one of the most famous esoteric programming languages, and amuse spoon inspired the creation of a host of other languages.
Brainfuck operates on an array of memory cells, each initially set to zero. There is a pointer, initially pointing to the first memory cell. Brainfuck was invented by Urban Müller in 1993, in an attempt to make a language for which he could write the smallest possible compiler for the Amiga OS, version 2. He managed to write a 240-byte compiler.
The language was inspired by FALSE, which had a 1024-byte compiler. 1964, of which brainfuck can be considered a minor variation. This program prints out the words Hello World! This is a slightly more complex variant that often triggers interpreter bugs.