Certificate Authority. In cryptography, a certificate authority or certification authority (CA) is an entity which issues digital certificates for use by other parties. It is an example of a trusted third party. Trusted third-party organization or company that issues digital certificates used to create digital signatures and public-private key pairs. dmoz.org/Computers/Security...Public_Key_Infrastructure/ PKIX/Tools_and_Services/Third_Party_Certificate_Authorities/
Computer Based Instruction. CAI (CBI) interchangeable terms that refer to all aspects and all forms of usage of computers in the actual instructional (teaching) process. If a student is sitting in front of a computer for the purpose of learning, then CAI or CBI is a proper description of the function of the computer hardware and software. CAI or CBI does not include computer-based testing (CBT) or purely assessment (CBA) applications of computing in education.
Completely Automated Public Turing test to tell Computers and Humans Apart. CAPTCHA is a type of challenge-response test used in computing to determine whether or not the user is human. ommon type of CAPTCHA requires that the user type the letters of a distorted image, sometimes with the addition of an obscured sequence of letters or digits that appears on the screen. http://www.captcha.biz/
Compact Disc-Recordable. CD-R or CD-PROM is a variation of the Compact Disc invented by Philips and Sony. CD-R is a Write Once, Read Many optical media (though the whole disk does not have to be entirely written in the same session) and retains a high level of compatibility with standard CD readers. http://www.chipchapin.com/CDMedia/cdr3.php3
Compact Disc Read-Only Memory. CD-ROM is a Compact Disc that contains data accessible by a computer. While the Compact Disc format was originally designed for music storage and playback, the format was later adapted to hold any form of binary data. http://computer.howstuffworks.com/cd.htm
The Common Desktop Environment (CDE) is a proprietary desktop environment for UNIX, based on the Motif widget toolkit. It is also the standard desktop environment on HP OpenVMS. http://www.cs.cf.ac.uk/Dave/C/node2.html
Continuous data protection. CDP also called continuous backup, refers to backup of computer data by automatically saving a copy of every change made to that data, essentially capturing every version of the data that the user saves. It allows the user or administrator to restore data to any point in time. http://www.r1soft.com/CDP.html