(now rare, chiefly historical) A person, typically male, who is employed to perform computations or calculations.

A programmable electronic device that performs mathematical calculations and logical operations, especially one that can process, store and retrieve large amounts of data very quickly; now especially, a small one for personal or home use employed for manipulating text or graphics, accessing the Internet, or playing games or media.

(intransitive) To use a computer.

(transitive) To send via computer.

(transitive) To transfer onto a computer; to computerize.