The infinite monkey theorem revolves around the idea that a monkey hitting random keys on a typewriter (or in today's context, a keyboard) for an infinite amount of time will almost surely type a given text, usually defined as the complete works of William Shakespeare.
Typing monkeys have made numerous appearances in media, from The Simpsons to A Hitchhiker's Guide To The Galaxy, to a Bob Newhart stand up routine, giving them a notable position in pop culture. In 2003, Plymouth University researchers put six macaques in a cage with a desktop computer. The monkeys proceeded to bash the machine with a rock, urinate on it, and type the letter S a lot. The results were published in the book, Notes Towards The Complete Works of Shakespeare.