A computer peripheral modelled after the typewriter keyboard. Designed to be used by a human to enter data by manual depression of keys. Most keyboards have characters engraved or printed on the keys, these usually represent characters selected from some language alphabet along with numbers and punctuation and other control keys.
See also computer.
Other types of keyboards have been proposed for small portable equipment where QWERTY is too large. One way to reduce the number of keys is to use chording, i.e. pressing several keys simultaneously. As an example, the GKOS keyboard has been designed for tiny wireless terminals (http://6key.net).