Computer

noun

1. A person employed to perform computations; one who computes.
2. (by restriction) A male computer, where the female computer is called a computress.
3. 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.