ICT Glossary – Some Important Terms Related To ICT


1. Cache Memory

A small high speed memory that is used to increase speed processing by making current programs and data available to CPU at a rapid rate.

2. CDV (Compressed Digital Video)

Video files are compressed to enable them to be transmitted from A to B quickly. A technology which is prominent on the Internet. Central Processing Unit.

3.  CGA (Colour Graphics Adaptor)

A video adaptor introduced by IBM in 1981. A CGA Monitor can display 640X200 pixels using 2 different colours or 320 X 200 pixels using 4 colours.

4. CGI

Common Gateway Interface Scripts are used by Internet programmers to perform basic functions such as counting the number of times a Web Page is accessed.

5. Chip Set

A group of PC chips which work together to perform a specific set of task.

6. CMOS (Complementary Metal-Oxide Semiconductor)

It is a special Ram Chip which stores vital settings about your PC such as the size of the Hard Disk and the amount and type of Memory. This information is stored even when the PC is switched off.

7. Controller

A circuit board which links the Hard Disk and the Motherboard. When access to information on the hard disk is requested by The Operating System, the controller tells the Hard Disk to get to work. With IDE Hard Disk, the controller is built into the Hard Disk itself.

8. CUI (Character user interface)

CUI uses only commands. It is not very friendly. A user has to given all the instructions in commands and therefore in such interfaces only the keyboard is used to input the data while mouse is not used. DOS is a very good example of CUI.

9. Circuit switching

The    simplest    method    of   data communication    in  which   a  dedicated    physical   path   is established   between a    sender  and receiver  nodes  through switching   nodes  of  the  network   for  the  duration   of  data exchange.

9. Communications satellite

A   microwave    relay   station precisely   positioned   36000   kms.  above  the  equator  with an  orbit  speed  that  exactly   matches   the  earth’s   rotation speed.     It  enables   data   transmission    between   any  two randomly  chosen points  in a very large area.

10. CISC (Complex Instruction          Set       Computer        Architecture)

An   architecture     of·  CPUs    with    large instruction   set,  variable-length    instructions,   and  a  variety of addressing  modes.

11. CAM (Computer Aided Manufacturing)

Use   of computers  to automate  manufacturing   operations.

12. CODASYL (Conference on Data        Systems        Languages)

A    committee      of    computer     users, manufacturers,    and  the  United  States  government,   which helps   to   establish    programming    standards    for   various programming   languages.

13. Cryptography

A means  of protecting  private  information against  unauthorized   access  in those  situations  where  it is difficult  to ensure  access  control.    The  basic  idea behind this  security  technique  is that if it is not possible  to ensure access   control,   it  is  better  to  prevent   comprehension    of information.

14. CMOS Chip

When the computer is turned off, the power supply stops providing electricity to the motherboard. When the computer is turned on again, the system still displays the correct clock time. This is because the CMOS chip saves some system information, such as time, system date and essential system settings. CMOS is kept powered by a button battery located on the motherboard. The CMOS chip is working even when the computer power is switched off.

ICT Glossary – Some Important Terms Related To ICT

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