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Glossary of IT Terms beginning with "C"

Brian Cryer's Glossary of IT Terms with Links. Definitions and links to further information on IT related terms ...

CA
Certificate Authority, details ...
Cable modem
Modem for use with cable, details ...
Cache
A temporary memory store for fast access to a copy of data, details ...
Caching
To make use of a cache for improved performance, details ...
CAD
Computer Aided Design / Computer Aided Dispatch, details ...
CADD
Computer Aided Design and Drafting, details ...
CAD/CAM
Computer Aided Design and Computer Aided Manufacture, details ...
CAGR
Compound Annual Growth Rate, details ...
CAL
Client Access License / Computer Aided Learning, details ...
CAM
Computer Aided Manufacture, details ...
Candela
SI unit of luminous intensity, details ...
CAPICOM
Cryptographic API Component Object Model, details ...
Captcha
Completely automated public Turning test, details ......
CAS
Code Access Security / Central Authentication Service, details ...
CASE
Computer Aided Software Engineering / Specification of whether letters should be upper or lower case, details ...
CAT5
100mbps Ethernet network cabling, details ...
CAT5E
1000mbps Ethernet network cabling, details ...
CAT6
1000mbps Ethernet network cabling, details ...
CC
Carbon Copy / Continuity Check / C Compiler / Credit Card / Conditional Compilation / Conditional Comments / Cubic Centimetre / Cubic Capacity / Closed Caption, details ...
CCD
Charge Coupled Device, details ...
CCIE
Cisco Certified Internetworking Expert, details ...
CCNA
Cisco Certified Network Associate, details ...
CCNP
Cisco Certified Network Professional, details ...
CCSE
Check Point Certified Security Expert / Center for Computational Sciences and Engineering, details ...
CCTV
Closed Circuit Television, details ...
CD
Compact disc / Change Directory / Candela, details ...
CD-R
Compact disc recordable, details ...
CD-RW
CD-Readable-Writable, details ...
CDFS
CD-ROM File System, details ...
CDMA
Code Division Multiple Access, details ...
CDMA2000
Code Division Multiple Access, details ...
CDO
Collaboration Data Objects, details ...
CDP
Cisco Discovery Protocol / Continuous Data Protection, details ...
CEICW
Configure E-mail and Internet Connection Wizard, details ...
Centroid
Centre point, details ...
CEO
Chief Executive Officer, details ...
CEP
Certificate Enrolment Protocol, details ...
CERN
Conseil Européenne pour la Recherche Nucléaire, details ...
cf
Compare / Carry Forward / ColdFusion, details ...
CFML
Coldfusion Markup Language, details ...
CGI
Common Gateway Interface, details ...
CHAP
Challenge Handshake Authentication Protocol / A man, details ...
Checkpoint
Point when all database data is written to disk, Cdetails ...
Chmod
Change Mode (file permissions), details ...
Choropleth
A type of thematic map, details ...
Chroma Key
The basis for an electronic process for combining two images, details ...
Chrominance
Colour component of a video signal, details ...
CI
Continuous Improvement / Customer Intelligence / Configuraton Item, details ...
CIDR
Classless Inter-Domain Routing, details ...
CIFS
Common Internet File System, details ...
CIM
Computer Integrated Manufacturing / Common Information Model, details ...
CIO
Chief Information Officer, details ...
CIPI
Critical Infrastructure Protection Initiative, details ...
CIS
Comodo Internet Security, details ...
CISC
Complex Instruction Set Computer, details ...
CISCO
Cisco Systems, details ...
CISP
Cardholder Information Security Program, details ...
CJK
Chinese, Japanese and Korean, details ...
CL
Computational Linguistics / Centilitre / Chloride / Centre Line, details ...
Clamping Level
Voltage level above which a surge suppression device diverts energy away, details ...
Clamping Time
Response time for a surge suppression device, details ...
Clamp Time
Response time for a surge suppression device, details ...
Class Library
Set of classes, details ...
CLI
Call Level Interface / Command Line Interface / Caller Line Identification, details ...
Click Fraud
Repetitive clicking on ads to boost website revenue, details ...
CLR
Common Language Runtime, details ...
CLS
Common Language Specification / Clear Screen, details ...
Cluster
Group of similar things / Group of linked computers working together / Unit by which disk space is allocated, details ...
Cluster Size
Unit of disk space allocation used by the operating system, details ...
Clustering
Connecting many computers together so that they appear as a single computer, details ...
CM
Configuration Management, details ...
CMIIW
Correct Me If I'm Wrong, details ...
CMS
Content Management System / Course Management System, details ...
CMYK
Cyan, Magenta, Yellow and Black, details ...
CNA
Certified Novell Administrator, details ...
CNAME
Canonical Name, details ...
CNC
Computer Numerical Control, details ...
CNC Router Bit
Cutting tool for a CNC machine Control, details ...
CNE
Certified Novell Engineer, details ...
COA
Certificate Of Authentication / Course(s) of Action, details ...
COD
Cash On Delivery, details ...
Code Behind
Web development approach where HTML and code are maintained in different files, details ...
COG
Tooth on the edge of a wheel / Centers of Gravity, details ...
ColdFusion
Development environment for building web applications and web services, details ...
COM
Component Object Model / Computer Output on Microfilm / Commercial domain name, details ...
Compression
To reduce in size, details ...
Configuration Management
Ensuring configuration is known and managed, details ...
Connection Failover
Automatic connection to a second server should the primary be unavailable, details ...
Connectionless Protocol
A protocol that does not require an established connection prior to sending data, details ...
Connection Oriented Protocol
A protocol requiring an established connection before sharing data, details ...
Connectivity
Relating to the connection of two or details ..., details ...
Convergent Evolution
A term coined to explain similar features seen in different types of creature, details ...
Conversion Rate
The rate at which visits or leads are converted into sales, details ...
Cookie
Information stored locally browser, details ...
Cooperative Multitasking
Simple multitasking operating system strategy, details ...
COP
Close of Play / Code of Practice / Coefficient of Performance / a policeman, details ...
Copyright
The exclusive legal right to publish or sell a work, details ...
CORBA
Common Object Request Broker Architecture, details ...
Coterminous
Having the same end point, details ...
COTS
Commercial Off The Shelf, details ...
COU
Change Only Update, details ...
CPA
Cost Per Acquisition / Commission Per Acquisition, details ...
CPC
Cost Per Click / Commission per click , details ...
CPD
Continuing Professional Development, details ...
CPI
Consumer Price Index / Characters per inch, details ...
CPM
Cost per impression, details ...
CP/M
Control Program Monitor (OS), details ...
CPP
Customer Preview Program, details ...
CPR
Cost Performance Report, details ...
CPS
Cost per sale, details ...
CPU
Central Processing Unit, details ...
CR
Carriage Return / Conversion Rate / Challenge Response / Change Request, details ...
CRC
Cyclic Redundancy Check, details ...
CRLF
Carriage Return Line Feed, details ...
CRM
Customer Relationship Management / Compensating Resource Manager, details ...
Cross-post
To post the same message to two or more groups at the same time, details ...
CRS
Coordinate Reference System, details ...
CRT
Cathode Ray Tube, details ...
CSN
Client Services for Netware, details ...
CSR
Certificate Signing Request, details ...
CSS
Cascading Style Sheet(s), details ...
CSV
Comma Separated Value, details ...
CS-W
Catalog Services - Web, details ...
CTP
Community Technology Preview, details ...
CTR
Click Through Rate, details ...
CTS
Clear To Send / Common Type System, details ...
CUL
See you later, details ...
CUPS
Common UNIX Printing System, details ...
Customer Relationship Management
A sales slogan, details ...
cvs
Concurrent Versions System, details ...
CW
Corporate Workgroup / Clockwise, details ...
CWF
Custom Weights File, details ...
CWL
Custom Weights List, details ...
CYA
Cover Your Arse, details ...