Definitions Part III

-
CMOS Complementry Metal Oxide Semiconductor. It is backed up by a battery to keep the clock ticking. It
also contains BIOS program which is neccessary for a computer to start.
CODEC Short for compression / decompression, codec refers to an audio or video compression method. Indeo
and Cinepak are common video codecs.
COM Computer Output on Microfilm.
Compiler Converts a program written in a computer programming language into machine language all at once.
An error file (.ERR) is also generated if any errors are found in the source code. Normally a comiler
does not links the neccessary library files to an object file till the time all errors are removed.
Compression
The process of shrinking files to conserve disk space or reduce modem transmission time. eg. PKZIP,
LHARC, etc. Computer A machine used to store and process information.
Computer crime It refers to using computer resources to engage in unauthorized or illegal acts. It normally includes:
data diddling (performing unauthorized modifications to data), tojan horse technique ( criminal
computer code burried in an authorized program), trap door routines(doors left open in a program),
logic bombs, computer viruses, scavenging, wire tapping, software piracy and hacking.etc.
Computer virus
A software written by a progrmmer to destroy/corrupt data of the target computer when this software
is run on the target computer. eg. Pakistani brain virus ( the ever first virus created in computer field) ,
Spirit virus, etc.
Constant A constant is a data value which doesn't change during program execution. eg 5, 10, 1.4329 etc.
Continuous data See Analog data
Coprocessor Also known as FPU (Floating Point Unit). a math coprocessor is specifically designed to accelerate
certain mathematical operations. Most useful for highend CAD, graphics, and statistical software.
Math coprocessors used to come as a separate / stand alone chip but since 486 DX they are built in the
main CPU.
CPU Cental Processing Unit. Contains three main parts.i.e. CU, Memory unit and ALU. It is considered the
brain of the computer system.
CRT Cathode Ray Tube. It is the picture tube in the monitor or TV. A jargony synonym for monitor.
CU Control Unit. Controls all the inputs from and outputs to the input and output devices. controls ALU
and Memory unit.
CUI Common User Interface. A text base software which interacts with the user through command line.
DAC Digital to Analog Converter. A device used to convert Digital signals to analog signals in order to use
them. eg. MODEM, a speedo-meter.etc.

Popular posts from this blog

History of Labor Day

-
Casting a glance back on Labor Day history is essentially about commemorating and celebrating the American Labor Movement. It is all about knowing the share that the American laborers had in building up the nation with its richness and its many achievements. The Labor Day, usually held on the first Monday in September, inspires this sense of the togetherness that workers need to feel and share in respecting their own contribution to the history of America . Labor Day is an annual recognition of all those dedicated American workers whose achievements, both socially and economically, deserve to be honored. On every Labor Day, Americans pay their tributes to those workers of strength and perseverance whose selfless efforts have added to the growth and prosperity of the American nation. Even after a century-long celebration, there is no one consistent theory about the Labor Day history. The prominent amongst these attributes the Labor Day to one Peter J. McGuire. He is the one who is cr...
Read more

Relationships Ruined by the Internet

-
10 Relationships Ruined by the Internet The wife who found pictures of her husband's wedding to another woman at Facebook Lynn France, a wife who suspected her husband was having an affair, found he was actually married to another woman through a simple Facebook search. All she had to do was type in the name of the woman she believed her husband, John, was seeing. The pair had been married at Disney World , no less, with France's husband dressed as Prince Charming , and his new bride as Sleeping Beauty . There was like an album of 200 pictures there. Their whole wedding. She had grown suspicious when her husband began taking frequent business trips, even leaving the day the couple's newborn son came home from the hospital. Once, she found his passport at home when he was supposed to be in China for business. She once caught her husband with another woman in a hotel so a girlfriend recommended checking the woman's Facebook page, where France...
Read more