| Cerf, Vincent |
President of the Internet Society (ISOC) and cocreator of TC/IP with Bob Kahn.
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| Cerfnet |
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| CERN |
Conseil Europeen pour la Recherche Nucleaire (European Laboratory for Nuclear Research). A high-energy physics research center in Geneva, Switzerland, where the World Wide Web was developed.
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| CERT |
Computer Emergency Response Team. An organization formed by DARPA in November 1988 after the Internet worm incident. CERT's mission is to watch for and respond to security emergencies on the Internet, and to improve the security of functioning systems. CERT provides 24-hour technical assistance for computer security threats, and publishes related educational materials. Cert can be found on the Web at www.cert.org
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| Certificate in Computer Programming |
(CCP). A certificate awarded by the Institute for Certification of Computer Professionals which indicates the bearer has passed an examination, and has some computer education or job experience.
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| Certified Systems Engineer |
(CSE). Certification level from Microsoft for technical specialists in Windows NT and other Microsoft software.
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| cfm |
Like .com and .org, this is a URL extension; it stands for "cold fusion" and is created by the company Allaire Corporation. Similar to Microsoft's Visual Interdev yet more popular, .cfm is a format allowing you to link databases and spreadsheets to your webpage much easier than via HTML coding.
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| CGA |
Color Graphics Adapter. An early IBM hardware video display standard, with a maximum resolution of 640x200 pixels. It was widely used in the mid-1980s, but then was superseded by EGA.
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| CGI |
Common Gateway Interface. A way of interfacing computer programs with HTTP or WWW servers, so that a server can offer interactive sites instead of just static text and images.
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| CGI script |
Common Gateway Interface script. A program that is run on a Web server, in response to input from a browser. The CGI script is the link between the server and a program running on the system; for example, a database. CGI scripts are used with interactive forms. See also CGI
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| cgi-bin |
Short for Common Gateway Interface-BINaries. A special directory where common gateway interface (CGI) scripts are kept. Since a CGI program is executable, having a CGI script on a Web page means allowing everyone who visits the page to run a program on the system, which is not very safe. Putting the CGI script in its own directory is a security precaution; the cgi-bin can be under direct control of the webmaster, which prohibits the average user from creating CGI scripts. Putting a script in the CGI bin also lets the Web server know to run the program rather than just display it to the browser.
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| CGM |
Computer Graphics Metafile. An ANSI standard format for exchanging graphics files between applications, in both vector and raster formats.
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| ch |
Top-level newsgroup category for a Swiss newsgroup.
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| chad |
The scrap left when a hole is punched in paper or tape.
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| chain printer |
A kind of impact printer in which the character slugs are moved by the links of a revolving chain.
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| chained list |
A list in which each data element points to the next. The chained list makes it possible to list data elements in sequence although they may be dispersed.
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| chained list search |
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| Challenge-Handshake Authentication Proto |
(CHAP). A way of authenticating the identity of a user on a PPP server. CHAP uses a three-way handshaking procedure, and provides more security than PAP. The identity of the user can be challenged at any time while a connection is open. CHAP is described in RFC 1334.
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| Channel |
This is when two devices are linked either externally in internally.
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| Channel Definition Format |
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| channel latency |
The waiting time for a communications channel to be available to transmit data.
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| channel op |
A user who has powers on an IRC (Internet Relay Chat) channel. The channel op may be responsible for monitoring the channel, and denying privileges to those who misuse it.
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| chanop |
Channel operator, or channel op. A user who has powers on an IRC (Internet Relay Chat) channel. The channel op may be responsible for monitoring the channel, and denying privileges to those who misuse it.
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| CHAP |
Challenge-Handshake Authentication Protocol. A way of authenticating the identity of a user on a PPP server. CHAP uses a three-way handshaking procedure, and provides more security than PAP. The identity of the user can be challenged at any time while a connection is open. CHAP is described in RFC 1334.
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| char |
Abbreviation for character, used in computer programming.
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