A keyboard monument is a large structure, usually made from metal or stone, that looks like a keyboard. It is made to honor and remember people or things that were important in the history of computers and computing. For example, a keyboard monument might be used to remember a person who made an important contribution to the development of computers or computing. The design of the monument could be a giant keyboard, with the keys made from metal and stone, or a more traditional monument with a plaque on it. The plaque would contain the name and a brief description of the person or thing being remembered.