C Band

   This is the band between 4 and 8 GHz with the 6 and 4 GHz band being used for satellite communications. Specifically, the 3.7 to 4.2 GHz satellite communication band is used as the down link frequencies in tandem with the 5.925 to 6,425 GHz band that serves as the uplink.

Cache

   A place to store something temporarily. Web pages you request are stored in your browser’s cache directory on your hard disk. When you return to a page you’ve recently viewed, the browser gets it from the cache rather than the original server, saving you time and the network additional traffic. You can usually vary the size of your cache, depending on your practical browser.

Cache Server

   A server relatively close to Internet users and typically within a business enterprise that saves (caches) Web pages and possibly FTP and other files that all users have requested. The cache server, rather than the Internet, can satisfy successive requests for these pages or files. A cache server not only gets information more quickly but also reduces Internet traffic.

Caption

   A text transcript of the audio portion of a video file that synchronizes the text to the action contained in the video.

Captions

   Words shown on a movie, television or computer monitor showing what is being said in the program. Captions may be "open" (visible whenever the program is shown) or "closed". Closed captions (when shown) may be visible to all people viewing the show, or with some technology, they may be visible only to people who wish to see them. Even though the terms caption and subtitle have similar definitions, captions commonly refer to on-screen text specifically designed for hearing impaired viewers, while subtitles are straight transcriptions or translations of the dialogue. Captions are usually positioned below the person who is speaking, and they include descriptions of sounds (such as gunshots or closing doors) and music. Closed captions are not visible until the viewer activates them. Open captions are always visible, such as subtitles on foreign videotapes.

Captioning Types

   Includes Off-line captioning, Realtime Captioning, Closed captions, Open captions, Closed caption decoder, Roll-up and Pop-On captions.

Central Processing Unit (CPU)

   The component of a computer in which data processing takes place.

Channel

   A frequency band in which a specific broadcast signal is transmitted. Channel frequencies are specified in the United States by the Federal Communications Commission. Television signals require a 6 MHz frequency band to carry all the necessary picture detail.

Closed Captioning    

    Words shown on a movie, television or computer monitor showing what is being said in the program. Closed captions (when shown) may be visible to all people viewing the show, or with some technology, they may be visible only to people who wish to see them.

Codec

   Coder/decoder system for digital transmission.

Cognitive Impairments

   It includes individuals with general processing difficulties (developmental disabilities, brain injury, etc.), people with very specific types of deficits (short term memory, inability to remember proper names, etc.), learning disabilities, language delays, and more.

Communication Technology   

   A system for sending and receiving voice, video and data electronic information.

Compressed Video

   When video signals are downsized to allow travel along a smaller carrier.

Compression Algorithms

   Software that allows codecs to reduce the number of bits required for data storage or transmission

Computer-Assisted Instruction (CAI)

   Teaching process in which a computer is utilized to enhance the learning environment by assisting students in gaining mastery over a specific skill.

Cooperative work-experience education course

    A course designed around a series of on the job working experiences that allow the students exposure to the real world of work.

Course Management System

   A tool that allows instructors and other college personnel to develop and support online learning. Accessed on the Web, this software allows instructors to manage materials distribution, assignments, communications and other aspects of instruction. Examples are Blackboard, WebCT, ETUDES, Moodle and Sakai.

Course Session

   A course session represents a unique instructional occurrence within a course section. There are two types of course sessions identified in the Data Element Dictionary. Type “A” is the standard type of course session. Type “C” is a course session that is used to assign students from the primary course section to smaller class sizes (e.g., to schedule two or more laboratory course sessions for students in the same Bio. 1 lecture section, the college may offer two sections, Bio 1 04A and Bio 1-04B to allow for smaller laboratory class sizes for students from the same Biology lecture course).

Courseware

   Educational software and materials used in teaching.

Cyberspace

   The “place” where humans interact over computer networks