C
Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA)

The method of access used by most wireless communication. A device that wants to send data on the wire will first send a short message to make sure that the signal can be received.

Carrier Sense Multiple Access with Collision Detection (CSMA/CD)

The method of access used by Ethernet, which senses the wire first to determine whether data is currently on the wire before sending its data.

cathode-ray tube (CRT)

The earliest method of creating a display from computer-generated output. Consists of an electron gun that fires a series of electrons through a vacuum tube onto a phosphorous screen very much like a television screen. This is still the most common type of display used ...

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