Com or COM may refer to:

A computer is a device that can be instructed to carry out arbitrary sequences of arithmetic or logical operations automatically.

A computer program is a collection of instructions that performs a specific task when executed by a computer.

Computer science is the study of the theory, experimentation, and engineering that form the basis for the design and use of computers.

The Commonwealth of Nations (formerly the British Commonwealth),[1] also known as simply the Commonwealth, is an intergovernmental organisation of 52 member states that are mostly former territories of the British Empire.

A computer network or data network is a digital telecommunications network which allows nodes to share resources.

In computing, a computer keyboard is a typewriter-style device which uses an arrangement of buttons or keys to act as a mechanical lever or electronic switch.

Compact disc (CD) is a digital optical disc data storage format released in 1982 and co-developed by Philips and Sony.

A complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is the imaginary unit (which satisfies the equation i2 = −1).