The study of computers and their architecture, languages, and applications, in all aspects, as well as the mathematical structures that relate to computers and computation.

(computing) The representation and manipulation of pictorial data by a computer. / (computing) The various technologies used to create and manipulate such pictorial data.

(programming) A language that is used internally by computers, including programming languages, machine languages, query languages, markup languages etc.

The process of aggregating the power of several computers to collaboratively run a single computational task in a transparent and coherent way.

(computing) A form of computing in which the computer resources are consumed like a traditional utility (water, electricity, gas).

(informal, computing) Computing services provided over the Internet (or "cloud"), whereby shared resources, software, and information are provided to computers and other devices on demand.

(computer hardware) The conceptual structure around which a given computer is designed. / (computer hardware) The science of computer design.

(dated) A small computer, built around a microprocessor, for use by one person at a time.

An electronic game, especially a game played using a general-purpose computer (as opposed to a game console).

(computing, mathematics) a formal theory of computability