Mimeos is a term that was commonly used to refer to mimeograph machines, which were used for printing documents and reproducing images during the 20th century. These machines were a mainstay in schools and offices, and the term "mimeos" became synonymous with the machines that produced copies. Today, mimeos are largely replaced by modern photocopy machines and printers. Synonyms for mimeos include gestetner, ditto machine, and stencil duplicator. These machines were all similar in function, with a drum that would roll ink onto sheets of paper, creating multiple copies in a short amount of time. While mimeos may no longer be in use, their legacy lives on in the modern document reproduction technology that replaced them.