C
- CA—Certificate Authority
- CAD—Computer-Aided Design
- CAE—Computer-Aided Engineering
- CAID—Computer-Aided Industrial Design
- CAI—Computer-Aided Instruction
- CAM—Computer-Aided Manufacturing
- CAPTCHA—Completely Automated Public Turing Test to tell Computers and Humans Apart
- CAT – Computer-Aided Translation
- CAQ—Computer-Aided Quality Assurance
- CASE—Computer-Aided Software Engineering
- cc—C Compiler
- CD—Compact Disc
- CDE—Common Desktop Environment
- CDMA—Code Division Multiple Access
- CDN—Content Delivery Network
- CDP—Continuous Data Protection
- CD-R—CD-Recordable
- CD-ROM—CD Read-Only Memory
- CD-RW—CD-Rewritable
- CDSA—Common Data Security Architecture
- CERT—Computer Emergency Response Team
- CES—Consumer Electronics Show
- CF—Compact Flash
- CFD—Computational Fluid Dynamics
- CFG—Context-Free Grammar
- CFG—Control Flow Graph
- CG—Computer Graphics
- CGA—Color Graphics Array
- CGI—Common Gateway Interface
- CGI—Computer-Generated Imagery
- CGT—Computational Graph Theory
- CHAP—Challenge-Handshake Authentication Protocol
- CHS—Cylinder-Head-Sector
- CIDR—Classless Inter-Domain Routing
- CIFS—Common Internet Filesystem
- CIM—Common Information Model
- CISC—Complex Instruction Set Computer
- CJK—Chinese, Japanese, and Korean
- CJKV—Chinese, Japanese, Korean, and Vietnamese
- CLI—Command Line Interface
- CLR—Common Language Runtime
- CM—Configuration Management
- CM—Content Management
- CMMI—Capability Maturity Model Integration
- CMOS—Complementary Metal-Oxide Semiconductor
- CMS—Content Management System
- CN—Canonical Name
- CN—Common Name
- CNC—Computer Numerical Control
- CNR—Communications and Networking Riser
- COBOL—Common Business-Oriented Language
- COM—Component Object Model
- CORBA—Common Object Request Broker Architecture
- COTS—Commercial Off-The-Shelf
- CPA—Cell Processor Architecture
- CPA—Converged Packet Access
- CPAN—Comprehensive Perl Archive Network
- CP/M—Control Program/Monitor
- CPRI—Common Public Radio Interface
- CPS—characters per second
- CPU—Central Processing Unit
- CR—Carriage Return
- CRAN—Comprehensive R Archive Network
- CRC—Cyclic Redundancy Check
- CRLF—Carriage Return Line Feed
- CRM—Customer Relationship Management
- CRS—Computer Reservations System
- CRT—Cathode Ray Tube
- CRUD—Create, Read, Update and Delete
- CS—Cable Select
- CS—Computer Science
- CSE—Computer Science and Engineering
- CSI—Common System Interface
- CSP—Communicating Sequential Processes
- CSRF—Cross-Site Request Forgery
- CSS—Cascading Style Sheets
- CSS—Content-Scrambling System
- CSS—Closed Source Software
- CSS—Cross-Site Scripting
- CSV—Comma-Separated Values
- CT—Computerized Tomography
- CTAN—Comprehensive TeX Archive Network
- CTCP—Client-To-Client Protocol
- CTI—Computer Telephony Integration
- CTL—Computational Tree Logic
- CTM—Close To Metal
- CTS—Clear To Send
- CTSS—Compatible Time-Sharing System
- CUA—Common User Access
- CVS—Concurrent Versioning System
Read more about this topic: List Of Computing And IT Abbreviations