| Term | Description |
|---|
| C2 |
Core 2 |
| CAB |
Cabinet |
| CAP |
Competitive Access Provider |
| CAPTCHA |
Completely Automated Public Turing test to tell Computers and Humans Apart |
| CAS |
Column Address Select or Strobe |
| CASC |
Certificate Authority Security Council |
| CATV |
Community Access Television |
| CBL |
Calculator-Based Laboratory |
| CBT |
Computer Based Training |
| CC |
Cubic Capacity/ Cubic Centimeter / Carbon Copy |
| CC |
Creative Commons |
| CCC |
Catalyst Control Center |
| CCD |
Charge Coupled Device |
| CCDE |
Cisco Certified Design Expert |
| CCFL |
Cold Cathode Fluorescent Lamp |
| CCIE |
Cisco Certified Internetwork Expert |
| CCITT |
International Telegraph and Telephone Consultative Committee |
| CCNA |
Cisco Certified Network Associate |
| CCNP |
Cisco Certified Network Professional |
| CD |
Compact Disc |
| CDA |
Communication Decency Act |
| CD-DA |
Compact Disc Digital Audio |
| CDDB |
Compact Disc Database |
| CDDI |
Copper Distributed Data Interface |
| CDE |
Common Desktop Environment |
| CDFS |
Compact Disc File System |
| CD-i |
Compact Disk-Interactive |
| CDN |
Computer Delivery Network |
| CDP |
Columbia Data Products |
| CDP |
Continuous Data Protection |
| CDP |
Certificate in Date Processing |
| CDP |
Content delivery Platform |
| CD-R |
Compact Disk Recordable |
| CD-ROM |
Compact Disc Read-Only Memory |
| CD-ROM XA |
CD-ROM Extended Architecture |
| CD-RW |
Compact Disc Read Writable |
| CDSL |
Consumer Digital Subscriber Line |
| CentOS |
Community Enterprise Operating System |
| CERN |
Conseil Européen pour la Recherche Nucléaire |
| CERT |
Computer Emergency Response Team |
| CES |
Consumers Electronics Show |
| CF |
CompactFlash |
| CGA |
Color Graphics Adapter |
| CGI |
Common Gateway Interface |
| CH |
CollegeHumor |
| CHAP |
Challenge-Handshake Authentication Protocol |
| CHAR |
Character |
| ChDir |
Change Directory |
| CHS |
Cylinder-Head-Sector |
| CIDR |
Classless Inter-Domain Routing |
| CIFS |
Common Internet File System |
| CIM |
Common Information Model |
| CIR |
Committed Information Rate |
| CISC |
Complex Instruction Set Computer |
| CISSP |
Certified Information Systems Security Professional |
| CLI |
Command Line Interface |
| CLNS |
Connectionless Network Service |
| CLOS |
Common Lisp Object System |
| CLR |
Common Language Runtime |
| CMA |
Computer Misuse Act |
| CMC |
Computer Mediated Communication |
| CMOS |
Complementary Metal-Oxide Semiconductor |
| CMS |
Content Management System |
| CMYK |
Cyan, Magenta, Yellow and Key or Black |
| CNCT |
Certified Network Computer Technician |
| CNE |
Certified Novell Engineer |
| CNR |
Communications and Networking Riser |
| CNST |
Computer Network System Technician |
| COA |
Certificate of Authenticity |
| COASt |
Cache on a Stick |
| COB |
Chip On Board |
| COBOL |
Common Business-Oriented Language |
| COM |
Component Object Model |
| COMDEX |
Computer Dealers' Exhibition |
| Celsius |
Temperature measuring scale |
| Certificate Authority |
Certificate Authority |
| Cascading Style Sheets |
Cascading Style Sheets |
| Cellular Telephone |
Cellular Telephone |
| Certification (Cert) |
Certification (Cert) |
| Chirp Spread Spectrum |
Chirp Spread Spectrum |
| Code Segment |
Code Segment |
| Codec |
Codec |
| Electromagnetic Coil |
Electromagnetic Coil |
| CE: Collectors' Edition |
CE: Collectors' Edition |
| CompTIA (Computing Technology Industry Association) |
CompTIA (Computing Technology Industry Association) |
| CGI |
Computer-Generated Imagery |
| Computer Output Microfilm |
Computer Output Microfilm |
| Computer Service Technician |
Computer Service Technician |
| COPPA |
Children's Online Privacy Protection Act |
| Core Dump |
Core Dump |
| CPA |
Cost per action |
| CPAN |
Comprehensive Perl Archive Network |
| CPC |
Cost per Click |
| CPGA |
Ceramic Pin Grid Array |
| CPL |
Combined Programming Language |
| CPM |
Cost per mile |
| CR |
Carriage Return |
| CRC |
Cyclic Redundancy Check |
| CRL |
Certificate Revocation List |
| CRM |
Customer Relationship Management |
| CSMA |
Carrier Sense Multiple Access |
| CSNET |
Computer Science Network |
| CSS |
Content Scramble System |
| CSU/DSU |
Channel Service Unit/Data Service Unit |
| CSV |
Comma-Separated Values |
| CTA |
Call to action |
| CTCP |
Client-to-client protocol |
| CTD |
Crash to Desktop |
| CTO |
Chief Technology Officer |
| CTR |
Click-through rate |
| Ctrl |
Control Key |
| CU |
Control Unit |
| CUPS |
Common UNIX Printing System |
| Customer Service |
Customer Service |
| CUT |
Coordinated Universal Time |
| CVE |
Common Vulnerabilities and Exposures |
| CVS |
Concurrent Version System |