The Hacker Acronym & Abbreviation Knowledgebase v2.14

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Acronym		Definition	Topics	External Links
C		Celsius
C		Centigrade
C&C		Command and Control
C/S		Client / Server
C/SCC		(IEEE Computer Society) Computer / Standards Coordinating Committee
C4I		Command/Control/Comp/Comm/Intel
CA		(VSAM) Control Area
CA		CAble
CA		Cell Arrival
CA		Certificate Authority
CA		Collision Avoidance
CA		Computer Associates
CA		Conditional Access
CAAD		Coherent Adaptive Array Diversity
CABS		Carrier Access Billing System
CAC		[DoD] Common Access Card
CAC		Calling-card Authorization Center
CAC		Canadian Advisory Committee
CAC		Carrier Access Code
CAC		Circuit Administration Center
CAC		Connection Admission Control
CAC		Customer Administration Center
CACH		Call Appearance Call Handling
CACHEKTS		Call Appearance Call Handling Electronic Key Telephone Service
CACS		Customer Administration Communication System
CAD		Card Acceptance Device / Card Acceptor Device
CAD		Computer Aided Design
CAD		Computer Aided Dispatch
CAD		Computer Aided Drafting
CAD/CAM		Computer-Aided Design / Computer-Aided Manufacturing
CADD		Computer Aided Design Development
CADES		CMS Advanced Electronic Signature (usually as CAdES)
CADV		Combined Alternate Data / Voice
CAE		California Association of Employers
CAE		Client Application Enabler (SQL)
CAE		Command Application Environment / Common Application Environment
CAE		Computer-Aided Engineering
CAEM		Computer Aided Engineering and Manufacturing
CAF		(CICS) Call Attach Facility
CAFD		Controllers Automatic message accounting Format Description
CAFM		Computer-Aided Facilities Management
CAG		Citrix Access Gateway (renamed to NetScaler Gateway)
CAGE		Commercial and Government Entity (code)
CAGR		Compound Annual Growth Rate
CAI		Call Assembly Index
CAI		Common Air Interface
CAI		Computer Assisted Instruction
CAI		Cooperative Applications Initiative
CAIA		Conference on Artificial Intelligence for Applications
CAIP		Canadian Association of Internet Providers
CAIRO		Consulted, Accountable, Informed, Responsible, and Omitted (also known as RACIO)
CAIRO		Consulted, Accountable, Informed, Responsible, and Out-of-the-Loop (also known as RACIO)
CAIS		Collocated Automatic Intercept System
CAL		Client Access License
CALC		Carrier Access Line Charge / Customer Access Line Charge
CALEA		(U.S.) Communications Assistance for Law Enforcement Act
CALRS		Centralized Automatic Loop Reporting System
CALS		Computer-aided Acquisition and Logistic Support
CALS		Continuous Acquisition and Life cycle Support
CAM		Cellular Automata Machine
CAM		Channel Access Method
CAM		Computer Aided Manufacturing
CAM		Computer AIDS Ministries
CAM		Content Addressable Memory
CAMA		Centralized Automatic Message Accounting
CAML		Computer Animation Markup Language
CAN		Campus-Area Network
CANARIE		Canadian Network for the Advancement of Research, Industry, and Education
CAP		(Mastercard) Chip Authentication Program
CAP		Carrierless And Phase (modulation)
CAP		Competitive Access Provider
CAP		Controlled Access Phase
CAP		Current Active Position
CAP		Customer Administration Panel
CAPI		Crypto Application Programming Interface
CAPIC		Canadian Association of Photographers and Illustrators in Communication
CAPM		Certified Associate in Project Management
CAROT		Centralized Automatic Reporting On Trunks
CARP		Cache Array Routing Protocol
CART		Classification And Regression Trees (algorithm)
CAS		Centralized Attendant Service
CAS		Centralized Attendant System
CAS		Channel Associated Signaling
CAS		Circuit Associated Signaling
CAS		Column Address Strobe
CAS		Communicating Application Specification
CAS		Computerized Autodial System
CAS		Customer Administrative Services
CASE		Common Application Service Element
CASE		Computer Aided Software Engineering / Computer Assisted Software Engineering
CASL		Canada's Anti-Spam Legislation
CASL		Compact Application Solution Language
CASP		CompTIA Advanced Security Practitioner
CASPD		Core Answer Set Programming Dialect
CASPIAN		Consumers Against Supermarket Privacy Invasion And Numbering
CASS		Coding Accuracy Support System
CAST		Centre for Advanced Spatial Technologies
CAT		Common Authentication Technology
CAT		Computer Aided Test
CAT		Computer Aided Transcription
CAT		Computer Assisted Translation
CAT		Computer-Assisted Telephone (system or survey)
CAT		Craft Access Terminal
CATA		Canadian Advanced Technology Alliance
CATLAS		Centralized Automatic Trouble Locating and Analysis System
CATNIP		Common Architecture for the Internet Protocol
CATV		Cable Television
CATV		Community Antenna TeleVision
CAU		Controlled Access Unit
CAU/LAM		Controlled Access Unit / Lobe Attachment Module
CAUCE		Coalition Against Unsolicited Commercial Email
CAV		Constant Angular Velocity
CAVE		CAVE Automatic Virtual Environment
CAVE		Computer-Aided Virtual Environment
CAW		Channel Address Word
CB		Citizens Band
CBA		Current Byte Address
CBBS		Computerized Bulletin Board System
CBC		Cipher Block Chaining
CBD		Component Based Development
CBDB		Currency and Banking DataBase
CBDS		Connectionless Broadband Data Service
CBE		Certified Banyan Engineer
CBEMA		Computer and Business Equipment Manufacturers' Association
CBI		Computer - Based Instruction
CBIR		Content Based Image Retrieval
CBK		Common Body of Knowledge
CBM		CAM Brain Machine
CBM		Commodore Business Machines
CBMS		Computer - Based Messaging System
CBO		Continuous Bitstream Oriented
CBQ		Class Based Queuing
CBR		Constant Bit Rate / Continuous Bit Rate
CBS		Certified Banyan Specialist
CBS		Common Bom System
CBS		CrossBar Switching
CBSD		Component-Based Software Development
CBT		Computer Based Training
CBVIR		Content Based Visual Image Retrieval
CBX		Computerized Business Exchange / Computerized Branch Exchange
CC		Calling Card
CC		Carbon Copy
CC		Central Control
CC		Clearing Center
CC		Cluster Controller
CC		Common Control
CC		Connect Confirm / Connection Confirm
CC		Continuity Cell
CC		Controller Card
CC		Cost Center
CC		Country Code
CC		Courtesy Copy
CC		Credit Card
CCA		Cisco Certified Architect
CCA		Citrix Certified Administrator
CCA		Conceptual Communications Area
CCAPH		Communications and Computer Applications in Public Health
CCC		Central Control Complex
CCC		Ceramic Chip Carrier
CCC		Chaos Computer Club
CCC		Clear Channel Capability
CCC		Computer Control Center
CCC		Copyright Clearance Center
CCD		Cash Concentration and Disbursement
CCD		Charge-Coupled Device
CCD		Customer Configuration Document
CCDE		Cisco Certified Design Expert
CCDN		Corporate Consolidated Data Network
CCE		Common Configuration Enumeration
CCEA		Citrix Certified Enterprise Administrator
CCEP		Commercial COMSEC Endorsement Program
CCF		(Microsoft) Customer Care Framework
CCFL		Cold Cathode Fluorescent Lamp
CCFT		Cold Cathode Fluorescent Tube
CCH		Connections per Circuit per Hour
CCH/SP		Harmonization Coordination Committee Permanent Secretariat
CCI		Citrix Certified Instructor
CCI		Common Content Inspection
CCI		Cyber Crime International
CCIA		Citrix Certified Integration Architect
CCIA		Computer and Communication Industry Association
CCIP		(IEEE) Committee on Communications and Information Policy
CCIR		Comite Consultatif Internationale de Radiocommunications / International Consultative Committee for Radio Communications
CCIRN		Coordinating Committee for Intercontinental Research Networks
CCIS		Common Channel Interoffice Signaling
CCITSE		Common Criteria for Information Technology Security Evaluation
CCITT		Consultative Committee for International Telephony and Telegraphy / Committe Consultif Internationale Telegraphie et Telephonie
CCM		Customer Communications Management
CCNA		Cisco Certified Network Associate
CCNC		Common Channel Network Controller
CCNC		Computer Communications Network Center
CCNUMA		Cache Coherent NonUniform Memory Architecture (usually as ccNUMA)
CCP		Certified Computing Professional
CCR		Commitment, Concurrency, and Recovery
CCR		Current Cell Rate
CCR		Customer Controlled Reconfiguration
CCRMA		Center for Computer Research in Music and Acoustics
CCRSE		Commitment, Concurrency, and Recovery Service Element
CCS		Calculus of Communicating Systems
CCS		Calling Card Service
CCS		Centum (hundreds) Call Seconds
CCS		Common Channel Signaling (sometimes as CCS7)
CCS		Common Communications Support
CCSA		Common Control Switching Arrangement
CCSP		Citrix Certified Sales Professional
CCSS		Common Channel Signaling System
CCSS		Common Configuration Scoring System
CCSS7		Common Channel Signaling System 7
CCSTN		Color Coded Super Twisted Nematic
CCT		Central Control Terminal
CCT		CNMA Conformance Testing
CCT		Cumulative Cycle Time
CCTA		Central Computer and Telecommunications Agency
CCTAC		Computer Communications Trouble Analysis Center
CCTL		Carriage Control
CCTL		Command Completion Time Limit
CCTLD		Country Code Top Level Domain (usually as ccTLD)
CCTV		Closed Circuit Television
CCU		COLT Computer Unit
CCU		Communications Control Unit
CCUTF		Corrupt Computer Underground TaskForce
CCV		Calling Card Validation
CCW		Channel Command Word
CCXML		Call Control eXtensible Markup Language
CD		(modem) Carrier Detect
CD		Capability Data
CD		Change Directory (DOS)
CD		Civil Defense
CD		Collision Detection
CD		Committee Draft
CD		Compact Disc
CD		Current Data
CDA		Call Data Accumulator
CDA		Capability Data Acknowledgment
CDA		Coin Detection and Announcement
CDA		Communications Decency Act
CDA		Compound Document Architecture
CDA		Crash Dump Analyzer
CDAR		Customer Dialed Account Recording
CDC		Centers for Disease Control
CDC		Connected Device Configuration
CDC		Cult of the Dead Cow (usually as cDc)
CDC		Current Data Checking
CDCCP		Control Data Communications Control Procedure
CDCF		Cumulative Discounted Cash Flow
CDCI		Cult of the Dead Cat, Inc. (usually as CdCI)
CDD		Common Data Dictionary
CDDA		Compact Disc Digital Audio (red book)
CD-DA		Compact Disc Digital Audio (red book)
CDDI		Copper Distributed Data Interface
CDDL		Common Development and Distribution License
CDE		Common Desktop Environment
CDE		Cooperative Development Environment (known now as Developer/2000)
CDF		Central Distribution Frame
CDF		Channel Definition Format
CDF		Combined Distributing Frame
CDFS		CD-ROM File System
CDG		CDMA Development Group
CDI		Circle Digit Identification
CDI		Compact Disc digital Interactive (green book)
CDI		Cyberterrorism Defense Initiative
CD-I		Compact Disc digital Interactive (green book)
CDIA		Certified Document Imaging Architech
CDIA+		Certified Document Imaging Architech
CDIF		CASE Data Interchange Format
CDIP		Ceramic Dual In-line Package
CDK		Conduit Development Kit
CDM		Certificate in Data Management
CDM		Common Data Model
CDM		Custom Device Module
CDM		Customer Data Management
CDMA		Code Division Multiple Access
CDN		Content Delivery Network / Content Distribution Network
CDO		Collaboration Data Objects
CDO		Community Dial Office
CDOE		Common Desktop Operating Environment
CDPD		Cellular Digital Packet Data
CDPR		Customer Dial Pulse Receiver
CDR		Call Detail Recording
CDR		Call Dial Rerouting
CDR		Compact Disc Reader
CDR		Compact Disc Recordable
CD-R		Compact Disc Recordable
CDRAM		Cache Dynamic Random Access Memory
CDRH		Center for Devices and Radiological Health
CDRL		Contract Data Requirements List (DD Form 1423)
CDROM		Compact Disc Read Only Memory
CD-ROM		Compact Disc Read Only Memory
CDRW		Compact Disc ReWritable
CD-RW		Compact Disc ReWritable
CDS		Cell Directory Service
CDS		Circuit Design System
CDS		Compound Document Service
CDS		Conceptual Data Store
CDS		Concurrent Data Streaming
CDS		Craft Dispatch System
CDS		Cross Domain Solution
CDSA		Common Data Security Architecture
CDT		Cell Delay Tolerance
CDT		Center for Democracy and Technology
CDUGD		Computer Down-Under-Ground Digest
CDV		Cell Delay Variation
CDVT		Cell Delay Variation Tolerance
CE		Communications Entity
CE		Computing Environment
CE		Consumer Electronics (as in the version of Windows CE)
CEA		California Employers Association (formerly CAE - California Association of Employers)
CEA		Certified e-Business Associate (retired certification)
CEA		Consumer Electronics Association (previously CEMA - Consumer Electronics Manufacturers Association)
CEC		Certified e-Business Consultant (retired certification)
CEC		Commission of European Communities
CEC		Consumer Electronics Control
CEF		Cable Entrance Facility
CEH		Certified Ethical Hacker
CEI		Comparably Efficient Interconnection
CEI		Connection Endpoint Identifier
CELP		Code Excited Linear Predictive Coding
CEM		Customer Experience Management
CEMA		Consumer Electronics Manufacturers Association (now called Consumer Electronics Association)
CEN		Comite Europeen de Normalisation (European Committee for Standardization)
CENELEC		Comite Europeen de Normalisation Electrique (European Committee for Electrical Standardization)
CENTOS		Community ENTerprise Operating System (usually as CentOS)
CENTREX		CENTRal EXchange
CEO		Chief Executive Officer
CEP		Canon Express Protocol
CEP		Certificate Enrollment Protocol
CEP		Certified e-Business Professional
CEP		Connection EndPoint
CEPI		Connection EndPoint Identifier
CEPT		Comite Europeen des Administrations des Postes et des Telecommunications (European Committee for the Administration of Post and Telecommunications)
CER		Call Error Rate
CER		Canonical Encoding Rules
CER		Cell Error Ratio
CERFNET		California Education and Research Federation Network
CERN		Conseil Europeen pour la Recherche Nucleaire (European Center for Nuclear Research)
CERT		Computer Emergency Response Team
CES		Circuit Emulation Service / Circuit Emulation Specification
CES		Consumer Electronics Show
CESU		Compatibility Encoding Scheme for UTF-16: 8-Bit (usually as CESU-8)
CESU-8		Compatibility Encoding Scheme for UTF-16: 8-Bit
CET		Computer - Enhanced Telephony
CEU		Continuing Education Unit
CEV		Control Environmental Vault / Controlled Environment Vault
CF		Carrier Flag
CF		Coin First
CF		Compact Flash (standard)
CF		Conversion Facility
CF		Coupling Facility
CFA		CompactFlash Association
CFAC		Call Forwarding All Calls
CFB		(K-bit) Cipher Feedback
CFB		Color Frame Buffer
CFCA		Communications Fraud Control Association
CFD		Computational Fluid Dynamics
CFF		Critical Fusion Frequency
CFI		Common Flash Interface
CFM		Cubic Feet per Minute
CFO		Chief Financial Officer
CFOS		Certified Fiber Optic Specialist
CFOT		Certified Fiber Optic Technician
CFP		(Conference on) Computers, Freedom, and Privacy
CFR		Code of Federal Regulations
CFV		Call For Votes
CG		Chassis Ground
CG		Computer-Generated
CGA		Color Graphics Adapter
CGCM		Certified Graphic Communications Manager
CGEIT		Certified in the Governance of Enterprise Information Technology
CGI		Common Gateway Interface
CGI		Computer Graphics Interface
CGI		Computer-Generated Imagery
CGM		Computer Graphics Metafile (usually as .CGM)
CGMIF		Computer Graphics Metafile Interchange Format
CGN		Concentrator Group Number
CGS		Constructive Solid Geometry (modelers)
CGSA		Cellular Geographic Serving Area
CHAID		Chi-square Automatic Interaction Detector
CHAMPUS		Civilian Health and Medical Program of the Uniformed Services
CHAP		Challenge Handshake Authentication Protocol
CHCP		CHange Code Page (Novell DOS)
CHDIR		Change Directory (DOS)
CHFI		Computer Hacking Forensic Investigator
CHI		Concentration Highway Interface
CHILL		CCITT HIgh Level Language (programming language)
CHINA		Communist Hackers In North America (often as CHiNA)
CHPID		Channel Path Identifier
CHRP		Common Hardware Reference Platform
CHS		Cylinder-Head-Sector addressing
CHT		Call Holding Time
CHTML		Compact HyperText Markup Language (usually as cHTML, sometimes as C-HTML)
C-HTML		Compact HyperText Markup Language
CI		(VSAM) Control Interval
CI		Cluster Interconnect
CI		Command Interpreter
CI		Computer Interconnect
CI		Congestion Indicator
CI		Connect Indication
CI		Container Inherit
CI		Copy Inhibit
CIA		Central Intelligence Agency
CIA		Confidentiality, Integrity, and Availability
CIAC		Computer Incident Advisory Capability
CIAO		Critical Infrastructure Assurance Office
CIAS		Center for Infrastructure Assurance and Security
CIB		Channel Input/output Bus
CIB		CRC32 Indicator Bit (IEEE 802.6)
CIBER		Cellular Intercarrier Billing Exchange Record
CIC		Carrier Identification Code
CICS		Customer Information Control System
CICSPARS		Customer Information Control System Performance Analysis Reporting System
CID		Charge Injection Device
CIDER		Cooperative Intrusion Detection Evaluation and Response (project)
CIDR		Classless Inter-Domain Routing / Classless Internet Domain Routing
CIE		Commission Internationale de l'Eclairaqe
CIE		Customer-Initiated Entry
CIESIN		Consortium for International Earth Science Information Network
CIF		Cells In Frames
CIF		Common Intermediate Format
CIFS		Common Internet File System
CIG		Commercial Internet Exchange
CIGOS		Canadian Interest Group on Open Systems
CII		Call Identity Index
CIM		Common Information Model
CIM		Computer Integrated Manufacturing
CIMAP		Circuit Installation Maintenance Access Package
CIMITI		Center for Information Management and Information Technology Innovation
CIMT		Computer Integrated Manufacturing and Technology
CIO		Chief Information Officer
CIP		Carrier Identification Parameter
CIP		Channel Interface Processor
CIP		Commerce Interchange Pipeline
CIPA		Camera & Imaging Products Association
CIR		Committed Information Rate
CIR		Computer Integrated Reporting
CIR		Computer Integrated Research
CIRA		Canadian Internet Registration Authority
CIRCAL		Circuit Calculus (system)
CIRM		Certified in Integrated Resource Management
CIS		Commercial Instruction Set
CIS		CompuServe Information Service
CIS		Contact Image Sensor
CIS		Customer Interaction Software
CIS		Customized Intercept Service
CISA		Certified Information Systems Auditor
CISC		Complex Instruction Set Computer / Complex Instruction Set Computing
CISM		Certified Information Security Manager
CISS		Common Internet Scheme Syntax
CISSP		Certified Information Systems Security Professional
CIT		Computer Integrated Telephony
CITTM		Corporate Information Technology Training Manager (Council)
CIU		Communications Interface Unit
CIU		Computer Interface Unit
CIX		Commercial Internet Exchange (Association)
CKO		Chief Knowledge Officer
CKS		Celestial Knights
CL		Connectionless
CL		Controlled Load
CLASS		Centralized Local Area Selective Signaling / Custom Local-Area Signaling Services
CLB		Common Logic Board
CLDC		Connected Limited Device Configuration
CLDN		Calling Line Directory Number
CLEC		Competitive Local Exchange Carrier
CLEI		Common-Language Equipment Identification
CLF		Common Log Format
CLI		(SQL) Call Level Interface
CLI		Command Line Interface / Command Line Interpreter
CLID		Calling Line IDentification
CLIP		Calling Line Identification Presentation
CLIR		Calling Line Identification Restriction
CLLI		Common - Language Location Identification
CLLM		Consolidated Link-Layer Management
CLM		Career Limiting Move
CLNAP		Connectionless Network Access Protocol
CLNP		Connectionless Network Protocol
CLNS		Connectionless Network Services
CLP		Cell Loss Priority
CLR		(.NET) Common Language Runtime
CLR		Cell Loss Ratio
CLS		Call Logging System
CLS		Certified Lotus Specialist
CLS		CLear Screen (DOS, BASIC)
CLS		Common Language Specification
CLS		Connectionless Server
CLSF		Connectionless Service Function
CLSID		Class Identifier
CLTK		CLaim ToKen
CL-TK		Claim Token
CLTP		Connectionless Transport Protocol
CLTS		Connectionless Transport Service
CLU		Clinical Language Understanding
CLU		Command Line Utility
CLUT		Color Look-up Table
CLV		Constant Linear Velocity
CM		[MPE/iX] Compatibility Mode
CM		Call Menu (message)
CM		Centimeter (usually as cm)
CM		Configuration Management
CMA		Communication Managers Association
CMAC		Centralized Maintenance and Administration Center
CMAD		(Workshop on) Computer Misuse And Detection
CMAN		(Oracle) Connection Manager
CMC		Cellular Mobile Carrier
CMC		Common Mail Calls
CMC		Construction Maintenance Center
CMCTL		(Oracle) Connection Manager Control (utility)
CMDB		Configuration Management Database
CMDF		Combined Main Distributing Frame
CMDS		Centralized Message Data System
CME		Component Management Entity
CMF		Content Management Framework
CMG		Computer Measurement Group
CMGW		(Oracle) Connection Manager GateWay
CMI		Coded Mark Inversion
CMIP		Common Management Information Protocol
CMIP		Common Management Interface Protocol
CMIPDU		Common Management Information Protocol Data Unit
CMIPM		Common Management Information Protocol Machine
CMIS		Common Management Information Service
CMIS		Content Management Interoperability Services
CMISE		Common Management Information Service Element
CML		Chemical Markup Language
CML		Current-Mode Logic
CMM		Capability Maturity Model
CMOS		Complementary Metal-Oxide Semiconductor
CMOT		Common Management information services and protocol Over TCP/IP
CMP		Certificate Management Protocol
CMP		Chip MultiProcessing
CMP		Common Management Protocol / Cooperative Management Protocol
CMP		Container-Managed Persistence
CMR		Cell Misinsertion Rate
CMRA		Commercial Mail Receiving Agency
CMS		Call Management System
CMS		Circuit Maintenance System
CMS		Color Management System
CMS		Communications Management Subsystem
CMS		Content Management System
CMS		Conversational Monitor System
CMS		Cryptographic Message Syntax (RFC 3852)
CMSS		Creative Multi-Speaker Surround
CMT		Cellular Mobile Telephone
CMTS		Cable Modem Termination Shelf
CMU		COLT Measurement Unit
CMV		[NIST/CSE] Cryptographic Module Validation
CMVP		Cryptographic Module Validation Program
CMYK		Cyan, Magenta, Yellow, Black
CN		Change Notice
CN		Common Name
CN		Connect
CN		Copy Network
CN		Country Name
CN		Customer Name
CN		Customer Network
CNA		Certified NetWare Administrator / Certified Novell Administrator
CNA		Communications Network Application
CNAB		Customer Name / Address Bureau
CNC		Computerized Numerical Control / Computer Numerical Controlled
CNC		Concentrator
CNCC		Customer Network Control Center
CNCP		Canadian National Canadian Pacific
CNE		Certified NetWare Engineer / Certified Novell Engineer
CNE		Computer Network Exploitation
CNET		Centre National d'Etudes des Telecommunications (National Center for the Study of Telecommunications)
CNI		Certified NetWare Instructor / Certified Novell Instructor
CNI		Coalition for Networked Information
CNI		Common Network Interface
CNIDR		Clearinghouse for Networked Information Discovery and Retrieval
CNM		Customer Network Management
CNMA		Communications Network for Manufacturing Applications
CNMS		Cylink Network Management System
CNN		Cable News Network
CNOS		Computer Network Operating System
CNP		Card Not Present (transaction)
CNP		Certified Network Professional
CNR		Complex Node Representation (ATM Forum)
CNRI		Corporation for National Research Initiatives
CNRS		Centre Nationale de Recherche Scientifique (National Center for Scientific Research)
CNS		Complimentary Network Service
CO		Central Office
CO		Commanding Officer (Military)
CO		Company
CO		Connection Oriented
CO		Customer Owned
COA		Certificate Of Authority
COA		Council Of Administration (usually as CoA)
COAM		Customer Owned And Maintained
COB		Chip On-Board
COB		Close Of Business (time of day)
COBIT		Control Objectives for Information and related Technology
COBOL		Common Business Oriented Language
COBRA		Consolidated Omnibus Budget Reconciliation Act
COC		Central Office Connections
COC		Circuit Order Control
COC		Corporate Operations Committee
COCF		Connection Oriented Convergence Function
COCOT		Customer Owned Coin Operated Telephone
COD		Capacity on Demand (usually as CoD)
COD		Cash On Delivery
COD		Connection Oriented Data
CODASYL		Conference on Data Systems Languages
CODCF		Central Office Data Connecting Facility
CODE		Campaign for an Open Digital Environment
CODE		Crackers Of Digital Equipment
CODEC		Coder / Decoder
CODEC		Compression / Decompression
CODLS		COnnection-mode Data Link Service
COE		Central Office Equipment
COE		Common Operating Environment
COEES		Central Office Equipment Engineering System
COEM		Commercial Original Equipment Manufacturer
COER		Central Office Equipment Reports system
COFF		Common Object File Format
COICA		Combating Online Infringement and Counterfeits Act
COL		Caldera OpenLinux
COLA		Cost Of Living Adjustment
COLBERT		Combined Operational Load Bearing External Resistance Treadmill
COLD		Common Object-oriented Language for Design
COLD		Computer Output to Laser Disk
COLT		Central Office Line Tester
COLT		Client Object Linking Technology
COM		Commercial (usually as .com)
COM		Common Object Model / Component Object Model
COM		Communication (port)
COM		Computer Output to Microfilm / Computer Output to Microfiche
COM		Computer Output to Micrographics
COM		Continuation Of Message
COM+		Component Object Model +
COMBS		Customer Oriented Message Buffer System
COMDEX		Computer Dealers Exposition
COMM		Communication
COMMA		Common Object Methodology Metamodel Architecture
COMPSAC		Computer Software and Applications Conference
COMPTIA		Computing Technology Industry Association (usually as CompTIA, aka CTIA)
COMPUSEC		Computer Security
COMSAT		Communications Satellite
COMSEC		Communications Security
COMSPEC		Command Specifier
COMSTAR		COMmon System for Technical Analysis and Reporting
CON		Central Office News
CON		Console
CONCERT		COmmunications for North Carolina Education, Research, and Technology
CONN		Connector
CONS		Connection Oriented Network Service / COnnection-mode Network Service
CONTAC		Central Office NeTwork ACcess
CONUS		CONtinental United States
COO		Chief Operating Officer / Chief Operations Officer
COOP		Continuity Of Operations / Continuity Of Operations Plan
COPIS		Corporate Planning Information System
COPP		Connection Oriented Presentation Protocol
COPPA		Children's Online Privacy Protection Act (of 1998)
COPS		Concept Oriented Programming System
COPS		Connection Oriented Presentation Service
COR		Confirmation Of Receipt
CORA		Canadian OSI Registration Authority
CORBA		Common Object Request Broker Architecture
CORDIS		Community Research and Development Information Service
CORE		Connection Oriented Route Establishment
CORE		Council Of Registrars
COREN		Corporation for Regional and Enterprise Networking (usually as CoREN)
CORES		Commission Registration System
CORISMA		Corporate Information Systems Modeling Architecture (usually as CorISMA)
CORNET		CORporate NETwork
CORS		Cross-Origin Resource Sharing
COS		Call Originate Status
COS		Class Of Service
COS		Console Operating System
COS		Corporation for Open Systems
COS		Cost of Service (usually as CoS)
COSAC		Canadian Open Systems Applications Criteria
COSE		Common Open Software Environment
COSE		Common Operating System Environment
COSINE		Cooperation for Open Systems Interconnection Networking Europe
COSMIC		COmmon Systems Main InterConnection frame system
COSMOS		COmputer System for Mainframe OperationS
COSN		Consortium for School Networking
COSPAN		Coordinated Specification Analysis
COSS		Common Operational Support Services
COSSS		Committee on Open Systems Support Services
COSTAB		Class Of Service Table
COT		Central Office Terminal / Central Office Trunks
COTP		Connection Oriented Transport Protocol
COTS		Commercial Off The Shelf
COTS		Connection Oriented Transport Service
COW		Cell on Wheels (usually as CoW)
COW		Character Oriented Windows
COW		Copy-on-Write (disk)
COW		Critical Operating Window
CP		[VM] Control Program
CP		Centralized Processor
CP		Collision Prevention
CP		Connect Presentation
CP		Connection Processor
CP		Contingency Plan
CP		Critical Path
CP		Customer Premises
CP/M		Control Program for Microcomputers
CPA		Certified Public Accountant
CPA		Connect Presentation Accept
CPA		Cost Per Action
CPC		Call Progress Characterization
CPC		Calling Party Control (switch)
CPC		Cellular Phone Company
CPC		Central Product Classification
CPC		Circuit Provisioning Center
CPC		Cost Per Click / Cost Per Click-through
CPCS		Common Part Convergence Sublayer
CPD		Central Pulse Distributor
CPE		Common Platform Enumeration
CPE		Consumer Provided Equipment / Customer Provided Equipment
CPE		Convergence Protocol Entity
CPE		Customer Premises Equipment
CPFM		Continuous Phase Frequency Modulation
CPH		Characters Per Hour / Cost Per Hour
CPI		Canadian Pirates Inc.
CPI		Characters Per Inch (usually cpi)
CPI		Code Page Information (file format)
CPI		Common Part Indicator
CPI		Common Programming Interface
CPI		Computer to PABX Interface / Computer to PBX Interface
CPI		Corrupt Programming International
CPIC		Common Programming Interface for Communications
CPI-C		Common Programming Interface for Communications
CPIM		Certified in Production and Inventory Management
CPIW		Customer Provided Inside Wiring
CPL		Characters Per Line (usually as cpl)
CPL		Combined Programming Language
CPL		Current Privilege Level
CPM		Check for Promiscuous Mode (program)
CPM		Communications Processor Module
CPM		Control Program for Microcomputers
CPM		Copies Per Minute
CPM		Cost Per Minute
CPM		Critical Path Method
CPMP		Carrier Performance Measurement Plan
CPMU		COSINE Project Management Unit
CPN		Calling Party Number
CPN		Customer Premises Network
CPNI		Customer Proprietary Network Information
CPODA		Contention Priority Oriented Demand Assignment
CPOL		Code Project Open License
CPP		Calling Party Pays
CPPM		Content Protection for Pre-recorded Media
CPR		Connect Presentation Reject
CPS		Certificate Practice Statement / Certification Practice Statement
CPS		Characters Per Second (usually as cps) / Cycles Per Second
CPS		Cost Per Sale
CPSR		Computer Professionals for Social Responsibility
CPT		Current Procedural Terminology
CPTWG		Copyright Protection Technical Working Group
CPU		Central Processing Unit
CQFP		Ceramic Quad Flat Package
CR		Carriage Return [ASCII Code 13 : $x0D]
CR		Connect Request
CR		Control Register
CRA		(VSAM) Catalog Recovery Area
CRAP		Completely Redundant Array of Pointers (programming)
CRAS		Cable Repair Administrative System
CRC		Class, Responsibility, and Collaboration
CRC		Customer Record Center
CRC		Customer Return Center
CRC		Cyclic Redundancy Check
CRCG		Common Routing Connection Group
CREF		Computer Ready Electronic File (guideline)
CREG		Concentrated Range Extension with Gain
CREN		Corporation for Research and Educational Networking
CRF		Cable Retransmission Facility
CRF		Communication Related Function / Connection Related Function
CRFMP		Cable Repair Force Management Plan
CRG		Central Resource Group
CRIME		Compression Ratio Info-leak Made Easy (security exploit) / Compression Info-leak Mass Exploitation
CRIS		Customer Record Information System
CRISC		Certified in Risk and Information Systems Control (pronounced "see-risk")
CRISP		Computer Retrieval of Information on Scientific Projects
CRISP		Continuous Readiness in Information Security Program
CRL		Certificate Revocation List
CRLF		Carriage Return Line Feed
CRM		Courtesy Reply Mail
CRM		Customer Relationship Management
CRQ		Call Request
CRS		Cell Relay Service
CRS		Centralized Results System
CRS		Configuration Report Server
CRSAB		Centralized Repair Service Answering Bureau
CRSO		Cellular Radio Switching Office
CRT		Cathode Ray Tube
CRTC		Canadian Radio & Television Commission
CRU		Customer Replaceable Unit
CRUD		Create, Read, Update, Delete // Create, Retrieve, Update, Delete // Create, Retrieve, Update, Destroy
CS		[GPRS] Coding Scheme
CS		Capability Set (One or Two)
CS		Card Services
CS		Carrier Selection
CS		Code Segment
CS		Communications Subsystem
CS		Convergence Sublayer
CS		Coordinated Single-layer
CS		Cursor Stability (isolation level)
CS		Customer Service
CSA		Canadian Standards Association
CSA		Carrier Serving Area
CSA		Cloud Security Alliance
CSACC		Customer Service Administration Control Center
CSAR		Centralized System for Analysis Reporting
CSC		Cell Site Controller
CSC		Client Side Cache
CSC		Computer Sciences Corporation
CSC		Customer Support Center
CSC		Customer Support Consortium
CSCC		(IEEE Computer Society) Computer Standards Coordinating Committee
CSCF		Central Site Control Facility
CSCW		Computer Supported Cooperative Work
CSD		Circuit Switched Data
CSDB		C-64 Scene Database (usually as CSDb)
CSDC		Circuit Switched Digital Capability
CSDN		Circuit - Switched Data Network
CSE		Coordinated Single-layer Embedded
CSEA		Cyber Security Enhancement Act
CSELT		Cèntro Studi e Laboratòri Telecommunicazioni (Telecommunications Study Center and Laboratory)
CSF		(Microsoft) Connected Services Framework
CSFS		Cable Signal Fault Signature
CSG		Constructive Solid Geomtry
CSH		Canadian Subject Headings
CSI		Called Subscriber Indentification
CSI		Center for the Study of Intelligence
CSI		Channel State Information
CSI		Convergence Sublayer Indication
CSIM		Client Side Image Map
CSL		Computer Systems Laboratory
CSL		Contributed Software Library
CSLIP		Compressed Serial Line Internet Protocol
CSLT		Customized System Load Tape
CSM		Computer Systems Manufacturing
CSM		Corrupt Society Magazine
CSMA		Carrier Sense Multiple Access
CSMA/CA		Carrier Sense Multiple Access / Collision Avoidance
CSMA/CD		Carrier Sense Multiple Access / Collision Detection
CSMA/CP		Carrier Sense Multiple Access / Collision Prevention
CSMC		Communications Services Management Council
CSMUX		Carrier Switched Multiplexer
CS-MUX		Carrier Switched Multiplexer
CSN		Carrier Service Node
CSN		Circuit-Switching Network
CSNET		Computer Science Network
CSO		Central Services Organization
CSO		Chief Sales Officer
CSO		Chief Strategy Officer
CSP		Certificate Service Provider
CSP		Certified Solution Provider
CSP		Coin Sent Paid
CSP		Commerce Service Provider
CSP		Communicating Sequential Processes
CSP		Communication Service Provider
CSP		Consumer Service Provider
CSP		Cryptographic Service Provider
CSPDN		Circuit Switched Public Data Network
CSPI		Critical Systems Protection Initiative
CSPP		Computer Systems Policy Project
CSR		(SSL) Certificate Signing Request
CSR		Cell Missequenced Ratio
CSR		Centrex Station Rearrangement
CSR		Certified Shorthand Reporter
CSR		Communications Standards Review
CSR		Customer Service Record
CSR		Customer Service Representative
CSRF		Cross-Site Request Forgery
CSR-T		Communications Standard Review - Telecommunications
CSS		Cascading Style Sheets
CSS		Communications Standards Summary
CSS		Computer Sub-System
CSS		Conceptual Signaling and Status
CSS		Content Scramble System
CSS		Controlled Slip Second
CSSC		[GNU] Compatibly Stupid Source Control
CSSE		Computer Services System Engine
CSSFE		Controlled Slip Second, Far End
CSSM		Common Security Services Manager
CSSP		Cascading Style Sheets and Positioning
CSTA		Computer Supported Telecommunications Applications / Computer Supported Telephony Applications (standard)
CSTN		Color Super Twisted Nematic
CSTO		Computer Systems Technology
CSU		Central Switching Unit
CSU		Channel Service Unit
CSU / DSU		Channel Service Unit / Data Service Unit
CSV		Circuit Switched Voice
CSV		Comma Separated Values
CSV		Common Separated Variables
CT		Collection Time
CT		Conformance Testing
CT		Continuous Tone
CT		Current Transformer
CTAK		Cipher Text Auto Key
CTAP		California Telephone Access Program
CTB		Cache Transfer Bus
CTC		Canadian Telephone Corporation
CTC		Central Test Center
CTC		Channel-To-Channel
CTCA		Channel-To-Channel Adapter
CTCS		Category Theory and Computer Science
CTD		Cell Transfer Delay
CTD		Cumulative Transit Delay
CTDB		Clustered Trivial Database
CTE		Computer Telephony Engineer
CTERM		Command TERMinal (protocol)
CTI		Computer Telephone Integration / Computer Telephony Integration
CTIA		Cellular Telecommunications Industry Association
CTIA		Computing Technology Industry Association (normally as CompTIA)
CTIP		(Commission on) Computing, Telecommunications, and Information Policies
CTL		Certificate Trust List
CTL		Complex Text Layout
CTL		Computation Tree Logic
CTM		Contac Trunk Module
CTMS		Carrier Transmission Measuring System
CTNE		Compañia Telefónica Nacional de España (National Telephone Company of Spain)
CTO		Call Transfer Outside
CTO		Chief Technology Officer / Chief Technical Officer
CTP		(Bluetooth) Cordless Telephony Profile
CTP		Community Technology Preview
CTP		Computer To Plate (technology)
CTR		Click Through Rate
CTR		Common Technical Regulations
CTR		Currency Transaction Report
CTR		Current Transfer Ratio
CTRG		Collaboration Technology Research Group
CTRL		Control (key) (sometimes expressed as ^ symbol)
CTS		Carpal Tunnel Syndrome
CTS		Clear To Send
CTS		Communications Technology Satellite
CTS		Configuration Technical Specialist
CTS		Conformance Testing Service
CTSLAN		Conformance Testing Service Local-Area Network
CTSS		Compatible Time Sharing System / Cray Time Sharing System
CTSWAN		Conformance Testing Service Wide - Area Network
CTT		Cartridge Tape Transport
CTT		Certified Technical Trainer
CTT+		Certified Technical Trainer +
CTTC		Cartridge Tape Transport Controller
CTTN		Cable Trunk Ticket Number
CTTY		Console TeleType
CTV		Cell Tolerance Variation
CTY		Console TeleType
CU		Common Update
CU		Computer Underground
CU		Control Unit
CU		Customer Unit
CU		See You (as in Goodbye)
CUA		Common User Access
CUA		Commonly Used Acronym
CUADD		Control Unit (logical) Address
CUB		Closed User Group
CUCRIT		Capital Utilization Criteria
CUD		Call User Data
CUD		Computer Underground Digest (usually as CuD)
CUDA		Compute Unified Device Architecture
CUG		Closed User Group
CUHS		Computer Underground Historical Society
CUI		Common User Interface
CUI		Controlled Unclassified Information
CUL		See You Later
CUL8R		See You Later
CUPS		Common Unix Printing System
CURIE		Compact Uniform Resource Identifier
CURL		Consortium of University Research Libraries (UK)
CUSI		Configurable Unified Search Interface
CUT		Control Unit Terminal
CV		Code Violation
CVAL&E		Computer Viruses, Artificial Life, and Evolution
CVALE		Computer Viruses, Artificial Life, and Evolution
CVC		Clear Voice Capture
CVCP		Code Violation, CP-bit Parity
CVCRC		Code Violation, Cyclical Redundancy Check
CVD		Chemical Vapor Disposition
CVDQ		Computer Virus Developments Quarterly
CVDT		Cell Variation Delay Tolerance
CVE		Common Vulnerabilities and Exposures (list)
CVF		Compressed Volume File
CVFE		Code Violation, Far End
CVIA		Computer Virus Industry Association
CVM		Cardholder Verification Method
CVM		Color Video Monitor
CVO		Commercial Vehicle Operation
CVP		Code Violation, "P" bit
CVPR		Computer Vision and Pattern Recognition
CVR		Compass Voice Response
CVS		Concurrent Versions System
CVSD		Continuous Variable Slope Delta (modulation)
CVSS		Common Vulnerability Scoring System
CVT		Communications Vector Table
CVT		Coordinated Video Timing
CVTC		Conversational Voice Technologies Corporation
CW		Contention Window
CW		Cyber Warriors
CWAP		Compact Wireless Application Protocol
CWARC		Canadian Workplace Automation Research Center
CWB		Concurrency Workbench
CWC		City-Wide Centrex
CWD		Call Waiting Deluxe
CWDM		Coarse Wavelength Division Multiplexing
CWDSA		(WOW) Certified Web Designer Associate
CWI		Centrum voor Wiskunde en Informatica (Center for Mathematics and Information)
CWIS		Campus Wide Information System
CWNA		Certified Wireless Network Administrator
CWNP		Certified Wireless Network Professional
CWSP		Certified Wireless Security Professional
CX		Customer Experience
CY		Calendar Year
CYOD		Choose Your Own Device
CYREC		Cyberspace Research and Education Center