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Letter C

C of E Church of England -- Genealogy Term see UK Genealogy Common Acronyms & Jargon for more information.
C&T Chips and Technologies
C/D Control Data
C/S Client/Server
C2D Character To Decimal
C2X Character To Hexadecimal
CACHE The name used for temporary information storage. CACHE typically refers to space set aside on special chips (or harddrive space) to hold data in buffer while it is being transferred from place to place.
CADD Computer Aided Design and Drafting
CADE Client/server Application Development Environment
CAD Computer Aided Design
CAEX Computer Aided Exploration
CAE Client Application Enabler
Common Applications Environment
Computer Aided Engineering
CAG Column Address Generator
CAIRN Collaborative Advanced Interagency Research Network
CAI Computer Aided Instruction
CALS Computer-Aided Acquisition in Logistic Support
CAL Calendar
Client Access License
Computer Aided Learning
CAM Common Access Method
Computer Aided Manufacturing
Contents Addressable Memory
CAN Cancel
or Controller Area Network
or Campus Area Network,
or slang for butt.
CAPD Computing To Assist Persons With Disabilities
CAPE Concurrent Art-to-Product Environment
CAPS Capitals (Upper Case Letters)
Cassette Programming System
CAP Carrierless Amplitude and Phase-Modulation
Central Arbitration Point
Communication Application Platform
Competitive Access Provider
Computer Aided Publishing
CARL Colorado Alliance of Research Libraries
CASE Computer Aided Software Engineering
CASL Crosstalk Application Scripting Language
CASSIS Classified and Search Support Information System
CASS Computer Assisted Search Service
CAS Column Address Select
Communications Application Specification
Computer Aided Styling
CAT SCAN Computerized Axial Tomography Scan
CATS Computer Assisted Training System
CATV Community Antenna Television (this was the original name for what is now known as Cable TV)
CAT Central Alaska Time
Computer Adaptive Test
Computer Aided Testing
Computer Aided Tomography
Computer Aided Transcription
CAU Controlled Access Unit
CAVE Computer Automatic Virtual Environment
CAV Constant Angular Velocity
CA Collision Avoidance
CBCR Channel Byte Count Register
CBC Cipher Block Chaining
CBDS Connectionless Broadband Data Service
CBEMA Computer and Business Equipment Manufacturers Association
CBGA Ceramic Ball Grid Array
CBI Computer Based Instruction\Instrumentation
CBL Computer Based Learning
CBMS Computer-Based Mail System
CBR Case Based Reasoning
Constant Bit Rate
CBT Computer Based Training
CBW Convert Byte to Word
CBX Computer-Controlled Branch Exchange
CC: Carbon Copy
CCD Charged-Coupled Device
CCFT Cold Cathode Fluorescent Tube
CCITT Comite Consultatif International Telegraphique et Telephonique/ Consultative Committee for International Telegraph and Telephone
CCI Common Client Interface
CCL Connection/Cursor Control Language
CCP Console Command Processor
CCSD Cellular Circuit-Switched Data
CCS Common Command Set
Common Communications Services
Common Communications Support
Continuous Composite Servo
CCT China Coast Time
CC Cluster Controller
CD+G Compact Disk plus Graphics
CD-DA Compact Disk -Digital Audio
CD-E Compact Disk - Erasable
CD-I Compact Disk - Interactive
CD-MO Compact Disk - Magneto Optical
CD-RDx Compact Disk - Read Only Memory Data Exchange Standard
CD-ROM Compact Disc-Read Only Memory CD-ROM can refer to either the equipment that uses a CD or it can refer to the CD itself. Typically we might call a CD with music on it a CD and a CD with data, games, etc on it a CD-ROM. All in all the most important thing to learn is that that thing on your computer with the sliding tray and a hole in it is not a coffee holder.
Consumer Device, Rendered Obsolete Monthly
CD-RTOS Compact Disk - Real Time Operating System
CD-RW Compact Disk - Re-Writable
CD-R Compact Disk - Recordable
CD-V Compact Disk - Video
CD-WO Compact Disk - Write Once
CD-XA Compact Disk - Extended Architecture
CDA Compound Document Architecture
CDBT Compact Disk-Based Training
CDC Control Data Corporation
CDDI Copper Distributed Data Interface
CDE Common Desktop Environment
Complex Data Entry
CDFS Compact Disc File System
CDF Channel Definition Format
CDIA Certified Document Imaging Architect
CDL Computer Design Language
CDMA Code Division Multiple Access
CDMF Commercial Data Masking Facility
CDOS Concurrent Disk Operating System
CDPD Cellular Digital Packet Data
CDRL Contract Data Requirements List
CDR Call Detail Record
Call Detail Recording
Common Data Representation
CDSA Common Data Security Architecture
CDSL Consumer Digital Subscriber Line
CDS Current Directory Structure
CDT Central Daylight Time
CD_CHRDY Card Channel Ready
CD Carrier Detect
Change Directory
Collision Detection
Color Display
Compact Disk
CEG Continuous Edge Graphics
CEI Conducted Electromagnetic Interference
CELP Card Edge Low Profile (socket) ]
CEMS Constituent Electronic Mail System
CEOP Conditional End Of Page
CERN The European Particle Physics Laboratory (initials originally from Conseil European pour la Recherche Nucleaire)
CERT Computer Emergency Response Team
CER Canonical Encoding Rules
CET Central European Time
CE Cache Enable
Chip Enable
Collision Elimination
Convert Enable
CFB Cipher Feedback
Configurable Function Block
CFM Code Fragment Manager
Cubic Feet Per Minute
CFR Computerized Facial Recognition
CFS Caching/Common File System
CFV Call For Votes
CGA Color Graphics Adaptor. You shouldn't need to know much about this any more. Almost all new monitors are VGA or Super-VGA or something even more super-duper.
CGE Common Graphics Environment
CGI-BIN Common Gateway Interface - Binary
CGI Computer Generated Images
Computer Graphics Interface
CGS Continuous-Grain Silicon
CG Control Gate
CHAP Challenge-Handshake Authentication Protocol
CHAR Character
CHAT Conversational Hypertext Access Technology
CHCK Channel Check
CHCP Change Code Page
CHDIR Change Directory
CHFN Change Finger
CHGRP Change Group
CHIPS Clearinghouse Interbank Payments System
CHKDSK Check Disk
CHMOD Change Mode
CHOWN Change Owner
CHP Chapter
CHRP Common Hardware Reference Platform
CHR Character
CHS Cylinder Head Sector
CIAC Computer Incident Advisory Capability
CIA Current Instruction Address
CICS/VS Customer Information Control System/ Virtual Storage
CIDR Classless Inter-Domain Routing
CID Charge-Injection Device
CID Consider It Done
CIFS Common Internet File System
CIF Common Interchange/Intermediate Format
Crystallographic Information File
Customer Information Feed
CIM Common Information Model
CompuServe Information Manager
Computer Integrated Manufacturing
CIOCS Communication Input/Output Control System
CIO Check It Out
CIO Chief Information Officer
CIP Command Interface Port
Common Indexing Protocol
CIRC Circular Reference
Cross-Interleaved Reed-Solomon Code
CIR Committed Information Rate
CISC Complex Instruction Set Computing
CIS Card Information Structure
Client Information System
CompuServe Information Service
Computer Information Systems
Contact Image Sensor
Customer Information System
CIT Computer-Integrated Telephony
CIVR Computer and Interactive Voice Response
CIX Commercial Internet Exchange
Compulink Information Exchange
CI Component Interface
CJLI Command Job Language Interpreter
CKD Count Key Data (device)
CLAR Channel Local Address Register
CLASS Client Access to Systems and Services
Cooperative Library Agency for Systems and Services
Custom Local-Area Signaling Services
CLC Clear Carry Flag
CLD Clear Direction Flag
CLEC Competitive Local Exchange Carrier
CLIB C Library
CLID Calling Line Identification
CLIST Command List
CLI Call-Level Interface
Clear Interrupt Flag
Client Library Interface
Command Line Interface
CLK Clock
CLNP Connectionless Network Protocol
CLOS Common Lisp Object System
CLP Cell Loss Priority
Constraint Logic Programming
CLSID Class Identifier
CLS Clear Screen
CLTP Connectionless Transport Protocol
CLTS Clear Task Switch Flag
CLTV Constant Linear Time Velocity
CLT Cairo Local Time
CLUI Command Line User Interface
CLUT Color Look-Up Table
CLV Constant Linear Velocity
CMA Concert Multi-thread Architecture
CMC Common Mail Calls
Common Messaging Calls
Communication Management Configuration
Complement Carry Flag
Computer-Mediated Communication
CMD Circuit Mode Data
CMF Creative Music Format
CMIP Common Management Information Protocol
CMIS Common Management Information Services/System
CML Chemical Markup Language
Conceptual Modelling Language
Computer Managed Learning
Current Mode Logic
CMMS Computerized Maintenance Management Software
CMMU Cache/Memory Management Unit
CMM Capability Maturity Model
CMOS Complementary Metal Oxide Semiconductor
CMOV Conditional Move
CMPS Compare word String
CMP Compare
CMS Code Management System
Compiler Monitor System
Conversation Monitor System
CMVC Configuration Management Version Control
CMW Compartmented Mode Workstation
CMX Compact Media Extension
This is a relatively new acronym, for a new wireless phone standard for multi-media.
CMYK Cyan-Magenta-Yellow-Black (color model)
CMY Cyan-Magenta-Yellow (color model)
CM Centimeter
Control Mark
Corrective Maintenance
CNAPS Co-Processing Node Architecture for Parallel Systems
CNA Certified NetWare Administrator
CNC Computerized Numerical Control
CNE Certified NetWare Engineer
CNG Calling (tone)
CNIDR Clearinghouse for Networked Information and Retrieval
CNI Certified Novell Instructor
CNN Composite Network Node
CNR Carrier to Noise Ratio
CNSS Core Nodal Switching Subsystem
CNVT Convert
CNV Conventional (pertaining to Memory)
CNX Certified Network Expert
COAST Card On A Stick (module)
COAX Coaxial Cable
COBOL Common Business-oriented Language (See HLL)
Completely Obsolete Business Oriented Language
COB Chip-On-Board
CODASYL Conference on Data System Languages (Group that designed COBOL)
CODEC Coder/Decoder
CODE Client-Server Open Development Environment
COEM Commercial Original Equipment Manufacturer
Cof$ Church of Scientology
COFF Common Object File Format
COGO Coordinate Geometry (Programming Language)
COLD Computer Output to Laser Disk
COLL Collision
COL Collision
Computer Oriented Language
COM1 First serial Port (asynchronous port)
COM2 Second serial Port
COM3 Third serial Port
COM4 Fourth serial Port
COMDEX Computer Dealers Exposition
COMET Cornell Macintosh Terminal Emulator
COMP. Computers
COMP Compare
COMSAT Communications Satellite Corporation
COM Component Object Model
Computer Output Microfilm
COND Condition
CONFIG Configuration
CONS Connection-Oriented Network Service
CONTONE Continuous Tone
CON Console (includes Keyboard and Screen)
COPICS Communications Oriented Production Information and Control System
CORBA Common Object Request Broker Architecture
CoREN Corporation for Research and Enterprise Network
COR Common Object Runtime
COSE Combined Office Standard Environment
Common Open Software/Systems Environment
COSMIC Computer Software Management and Information Center
COSMOS Computer System for Mainframe Operations
COSS Common Object Services Specification
COS Compatible Operating System
COTS Commercial Off-The-Shelf
CO Central Office
Command Output
Convert Out
CP/M Control Program for Microcomputers
CPA Certified Public Accountant
CPCS Check Processing Control System
CPC Constant Point Calculation
CPE Central Processing Element
Customer Premises Equipment
Customer Provided Equipment
CPG Clock Pulse Generator
CPI-C Common Programming Interface for Communications
CPIO Copy In and Out
CPI Characters Per Inch
Clock Per Instruction
Common Programming Interface
CPLD Complex Programmable Logic Device
CPL Current Privilege Level
CPM Critical Path Method
CPS Characters Per Second
Cycles Per Second
CPT Command Pass Through
CPU Central Processing Unit
CPW Commercial Processing Workload
CP Copy Protected
CR/LF Carriage Return/Line Feed
CRAM Cyberspatial Reality Advancement Movement
CRAYON Create Your Own Newspaper
CRC Cyclic Redundancy Check
CREN Computer Research Education Network
Corporation for Research and Education Networking
CRF Cable Retransmission Facility
Cross Reference File
CRI Color Reproduction Indices
CROM Control Read Only Memory
CROs County Record Offices -- Genealogy Term see UK Genealogy Common Acronyms & Jargon for more information.
CRTC CRT Controller
CRT Cathode Ray Tube
CRUD Create, Retrieve, Update, Delete
CR Carriage Return
CS/SS Card Service/Socket Service
CSAR Channel System Address Register
CSA Calendaring and Scheduling API
CSCW Computer Supported Cooperative Work
CSDS Circuit Switched Data Service
CSD Circuit-Switched Data
Computer Services Department
Corrective Service Diskette
CSE Certified System Engineer
CSFI Communication Subsystem For Interconnection
CSG Constructive Solid Geometry
Consulting Services Group
CSID Call Subscriber ID
CSI Command Sequence Introducer
CompuServe Incorporated
CSLIP Compressed Serial Line Interface Protocol
CSL Computer Sensitive Language
CSMA/CA Carrier Sense Multiple Access/with Collision Avoidance
CSMA/CD Carrier Sense Multiple Access/with Collision Detection
CSMS Customer Support Management System
CSM Code Set Map (file)
Communications Services Manager
CSNET Computer Science Network
CSN Card-Select Number
CSO Central Services Organization
CSPDN Circuit Switched Public Data Network
CSP Certified Systems Professional
Chip-Scale Packaging
Commercial Subroutine Package
CompuCom Speed Protocol
Communicating Sequential Processes
Cross System Product
CSRAM Custom Static RAM
CSSM Client-Server Systems Management
CSS * Continuous System Simulator (Language)
Cascading Style Sheet
Contact Start-Stop
CSTA Computer-Supported Telephony Applications
CST Central Standard Time
CSU Channel Service/Switching Unit
CSV Circuit-Switched Voice
Comma-Separated Value/Variable
Common Services Verbs (interface)
CS Chip Select
Clear to Send
Code Segment
CTB Cipher Type Byte
CTCP Client-To-Client Protocol
CTC Channel To Channel
CTI Computer-Telephony Integration
CTOS Computerized Tomography Operating System
Convergent Technologies Operating System
CTPA Coax-to-Twisted-Pair Adapter
CTRCO Calculating,Tabulating,Recording Company (The name of this company was changed to "International Business Machines" by Thomas J. Watson, Sr.)
CTRL Control
CTSS Compatible Time Sharing System
CTS Clear To Send
Computer Telephony Solution
Customer Telephone System
CUA Common User Access
CUB Cursor Backward
CUD Cursor Down
CUE Custom Updates and Extras (card)
CUF Cursor Forward
CUI Character-Oriented User Interface
Common User Interface
CUL8R See You Later
CUPID Completely Universal Processor I/O Design
CUP Cursor Position
CUSIP Committee for Uniform Security Identification Procedures
CUTE Clarkston University Terminal Emulator
CUT Control Unit Terminal
CUU Cursor Up
CVF Compressed Volume File
CVGA Color Video Graphics Array
CVIA Computer Virus Industry Association
CVT Convert
CVW CodeView for Windows
CWD Convert Word to Double Word
Change Working Directory
CWIS Campus Wide Information Service/System
Community Wide Information Service/System
CYA See ya as in bye see you later.
CYL Cylinder
CYMK Cyan-Yellow-Magenta-Black (color model)
C C Programming Language