电信专业英英词典C-4（在线收听）

　　Compatible - When one object can be used interchangeably with another.

　　Composite Baseband - The unclamped and unfiltered output of the satellite receiver's demodulator circuit. It contains all of the video information as well as all transmitted subcarriers, such as the color subcarrier.

　　Compression - This occurs when information is reduced in size but all of the necessary information is retained.

　　Compression Ratio - This is the ratio of the original size of data that is sent to the compressed size.

　　Computer Network - See Network.

　　Configuration - This is the software or hardware arrangements that define a computer (or telecom system) and determine what actions will be carried out (and how).

　　Connected - This means you are online.

　　Connect Speed - Modem speed in bps.

　　Connection - A electrical pathway between telephones or similar devices.

　　Control Channel - With a cellular telephone system there are a few channels that allow the base stations to transmit information to the cell phones in its area.

　　Conus - This stands for Contiguous United States.

　　Copyright - This protects an author's work from being directly copied by another.

　　Country Code - This is the standardized code that designates a certain country.

　　Coverage Area - A geographical area that is defined by the coverage of a particular satellite.

　　CPS - See characters per second.

　　Crash - This is the complete failure of software or hardware operation. The only available option is to restart from an initial condition.

　　CRC - See Cyclic Redundancy Check.

　　Cross Modulation - A form of distortion in which modulation from one or more carriers' signals is imposed on another carrier's signal.

　　CRT - This stands for Cathode Ray Tub, and is a glass device used in video displays (e.g. televisions).

　　C/T - Carrier-to-noise-temperature ratio.

　　CTRL - This is the abbreviation for the ConTRoL key-command.

　　CTS - See Clear to Send.

　　Cursor - This is the particular marker that points out the next place the text will next appear on your screen.

　　Cyclic Redundancy Check (CRC) - This is a common process that is used to validate the integrity of a block of data.