Cableco |
Local CATV company |
Cabling Plant |
The term used for a specific cabling or wiring or fiber infrastructure. It includes the connectors and splices (Bellcore estimates that a typical U.S. telephone connection crosses 22 splices!) For telcos it usually means all external cable from the CO to the subscriber's connection. |
| CAPTCHA | Type of challenge-response test used in computing to ensure that the response is not generated by a computer. The process involves one computer (a server) asking a user to complete a simple test which the computer is able to generate and grade. Because other computers are unable to solve the CAPTCHA, any user entering a correct solution is presumed to be human. A common type of CAPTCHA requires that the user type the letters or digits of a distorted image that appears on the screen. |
| CATV | Cable Television |
CMTS |
Cable Modem Termination Stations |
CMX |
Communications limited use cabling, suitable for single or multi-family dwelling (residential). |
CNE |
Certified Netware Engineer |
CO |
Central Office, this is another fuzzy term that gets various meanings from everyday use. It can be a telephone building with telephony switches and other equipment (like batteries, several larger switching frames, air conditioning) or a smaller enclosure with a single telephone switch. |
CompTIA |
ComputingTechnology Industry Association |
Cookie |
A message given to the Web browser, on the client, from a Web server. The message is stored in the form of a text file (filename.txt). The message is then sent back to the server each time the browser requests a page from the server. (Originally KOKE in UNIX operating systems) |
| COWs | Computers on Wheels |
CPU |
Central Processing Unit |
Crapware |
Adware, Spyware, malware, browser hijackers, unwanted advertising popups that can appear even when not online. |
CRC |
Cyclic Redundancy Check or error checking scheme. Essentially, the 1's and 0's of a serial bit stream (like a data packet) are added together, that sum is transmitted along with the data. The receiver makes the same calculation and compares results with the CRC value sent. |
CRES |
Certified Radiology Equipment Specialist |
| CRT | Cathode Ray Tube – the largest and deepest monitor that is still the standard for color |
CSMA/CD |
Carrier Sense with Multiple Access and Collision Detection |
| CSS | Cascading Style Sheet - lie a template where the format of each page within a website has the same form and structure |
CT |
Computed Tomography |
CTEC |
Microsoft Certified Technical Education Centers |
Resources: IT World Glossary
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