Com or COM may refer to:
A computer is a device that can be instructed to carry out an arbitrary set 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), also known as simply the Commonwealth, is an intergovernmental organisation of 52 member states that are mostly former territories of the British Empire.
Comcast Corporation (formerly registered as Comcast Holdings) is an American global telecommunications conglomerate that is the largest broadcasting and cable television company in the world by revenue.
A computer network or data network is a telecommunications network which allows nodes to share resources.
Compact disc (CD) is a digital optical disc data storage format released in 1982 and co-developed by Philips and Sony.
Computer security, also known as cyber security or IT security, is the protection of computer systems from the theft or damage to their hardware, software or information, as well as from disruption or misdirection of the services they provide.