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C Acronyms

Acronyms that start with Letter C





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Acronym Meaning / Link
CABS Carrier Access Billing System
CACP Central Arbitration Control Point
CAD Computer-aided design
CAM Common Access Method or Computer Aided Manufacturing or Content Addressable Memory
CAN Campus Area Network
CAP Communications Alternative Provider/Carrierless Amplitude Phase Modulation
CAPTCHA Completely Automated Public turing Test to tell Computers and Humans Apart
CAS Column-Address Strobe
CASE Computer Aided Software Engineering
CATANET Concatanated Network
CATV Cable Television
CAV Constant Angular Velocity
CB Citizens Band OR Component Broker
CBR Constant Bit Rate
CBT Computer Based Training
CBX Common Branch eXtender
CC Carbon Copy
CCB Command Control Block
CCD Charge-coupled device
CCITT Comite Consulatif Internationale de Telegraphie et Telephonie (communications standards organization based in Switzerland)
CCCP0 3CP0 - Robot from movie "Star Wars"
CCS Common Channel Signaling or Common Command Set
CCTV Closed Circuit Television
CD Compact Disc or Carrier Detect
CD-DA Compact Disc - Digital Audio
CDDI Copper Distributed Data Interface
CDFS CD-ROM File System
CDI Compact Disc Interactive
CDIA Certified Document Imaging Architect
CDMA Code Division Multiple Access
CDPD Cellular Digital Packet Data wireless format
CD-R CD-Recorder or Compact Disc - Recordable
CDR Copy Density Range or Call Detail Record
CD-ROM Compact disc read-only memory
CD-RW Compact Disc Re-Writable or Read-Write
CDSA Common Data Security Architecture
CEPS Color Electronic Prepress System
CERT Computer Emergency Response Team
CF Carry Flag
CFs Critical Fixpacks (software)
CFP Computers, Freedom and Privacy or Call For Papers
CGA Color graphics adapter (video display standard)
CGI Computer Graphics Interface or Common Gateway Interface
CGM Computer Graphics Metafile (file format)
CHAP Challenge-Handshake Authentication Protocol
CHS Cylinders / Heads / Sectors
CIC Cable In the Classroom or Computing, Information and Communications
CICS Customer Information Control System, Compact Integrated Communications System 
CID Caller IDentification
CIDR Classless Inter-Domain Routing
CIE Commission Internationale de l'Eclairage
CIF Common Intermediate Format
CIM Common Information Model or Computer Integrated Manufacturing
CIO Chief Information Officer
CISC Complex Instruction Set Computing
CKI Chair Keyboard Interface (tech jargon for user is the problem)
CLA Carry Look-ahead Adder
CLE Customer Located Equipment
CLEC Competing Local Exchange Carrier
CLI Command Line Interface
CLID Caller Line IDentification for CID (Caller ID)
CLS Circuit Location Addresses or Close a Loop circuit (fiber)
CLV Constant Linear Velocity
CMI Cable Microcell Integrator
CMI/HIC Cable Microcell Integrator / Headend Interface Converter
CMIP Common Management Information Protocol
CMOS Complimentary Metal Oxide Semiconductor
CMP Communications Plenum Cable
CMR Communications Riser Cable
CMS Code Management System or Color Management System
CMTS Cable Modem Termination System
CMYK Cyan, magenta, yellow, and key black (ink colors for printing)
CN Common Name or Canonical Name
CNA Certified Network Administrator
CNAM Caller NAMe
CNC Computer Numeric Control or Collaborative Networked Communication
CNE Certified Network Engineer
CNPS Computer Noise Prevention System
CNR Communications and Network Riser
CO Central Office
COA Certificate Of Authenticity
COAST Cache On A Stick
COBOL Common Business Oriented Language
CODEC Coder / Decoder Compression / Decompression
COLD Computer Output to Laser Disc
COM Component Object Model, .COM - COMmercial web site  (See our list of TLDs here)
COMDEX Communications Development Exposition
COOP As in .coop - COOPerative web site  (See our list of TLDs here)
COPS Concept Oriented Programming System
CORA Computer Oriented Reproducer Assembly (Linotype-Hell proprietary typesetting language, also, the name of the principle programmer's wife)
CORBA Common Object Request Broker Architecture
CoS Class Of Service
COSMOS Computer System for Mainframe Operations
CoSysOp Co-Systems Operator
COW Character-Oriented Windows Interface
CPC Cost-Per-Click (banner ad jargon)
CPE Customer Premises Equipment
CP/M Control Program / Microcomputer
CPI Clocks Per Instruction
CPM Cost-Per-iMpression (banner ad jargon)
CPS Characters Per Second or Conversational Programming System
CPSS CP SoftSwitch
CPU Central Processing Unit
CQFP Ceramic Quad Flat Pack
CR Carriage Return
CRC Cyclical Redundancy Checking
CRIMM Continuity Rambus Inline Memory Module
CRIS Cosmic Ray Isotope Spectrometer, Construction Risk and Insurance Specialist, Current Research Information System, Community Refugee and Immigration Services 
CRM Customer Relationship Management
CRQ Command Response Queue
CRT Cathode Ray Tube
CS Chip Select
C-SCANS Client-Systems Computer Access NetworkS
CSD Corrective Service Diskettes
CSID Calling Station IDentification or character set identifier
CSLIP Compressed Serial Line Internet Protocol
CSMA Carrier Sense Multiple Access
CSMA/CD Carrier Sense Multiple Access - Collision Detection
CSNET Computer Science NETwork
CSP CompuCom Speed Protocolor or Communicating Sequential Processes
CSR Command Status Register
CSS Cascading Style Sheets


Computer Supported Telephony Application (CSTA) is a standard for Computer Telephony Integration (CTI) put forth by the European Computer Manufacturers Association (ECMA)

CSU Channel Service Unit as in CSU / DSU in modems and routers 
CT Continuous tone
CT2T Continuous tone to tape
CTI Computer-Telephony Integration
CTS Clear To Send Signal
CTTC Copper To The Curb
CTTH Copper To The Home
CTTY Console TeleTYpe
CUI Centre Universitaire d'Informatique
CUT Control Unit Terminal
CVF Compressed Volume File
CW Continuous Wave or Call Waiting
CWCID Call Waiting Caller IDentification
CWT Call WaiTing
CYBORG CYBernetic ORGanism
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