Written in 1892 by Harry Dacre, Daisy Bell became one of the most recognised popular songs of its era, inspired by a bicycle built for two. In 1961 an IBM 7094 became the first computer to sing it, a moment Arthur C. Clarke witnessed and later echoed when HAL 9000 sings the song while shutting down in 2001 A Space Odyssey. That double history, Victorian music hall romance and early computer history, is why the clip keeps returning in memes, fan edits and discussions of artificial intelligence.