Saturday, September 20, 2008

"My Digital World Glossary".

* RAM: Is a type of computer memory that can be accessed quickly without touching any bytes.In addiction, Ram is the most common type of memory found in computers and other devices, such as printers.








* Computer Storage:A computer memory that refer to components, devices and recording
media that retain data for some interval of time.








* Optical Drive: A storage device that writes data to and reads data from an optical storage medium, such as compact disk.



* Software:
Is an application package, which enables you to perform certain tasks, which manipulates any number of variables, hardware or data. Microsoft Word is a software program that enables word processing facilities.



* USB:is a plug-and-play portable storage device that uses flash memory and is lightweight enough to attach to a key chain. A USB drive can be used in place of a floppy disk, Zip drive disk, or CD. When the user plugs the device into the USB port, the computer's operating system recognizes the device as a removable drive and assigns it a drive letter. Moreover, is known as a flash drive or keychain drive.








* Computer: An electronic machine that receives, processes and presents data. A computer can be programmed to perform complicated tasks, like solving complex mathematical equations or controlling a flight simulator.






* Microprocessor: a chip that serves as the central processing unit controlling a computer. A microprocessor is the result of an electronics miniaturisation technique and computer technology which provide programmable intelligence in a small package at relatively low cost.






* Hard Drive: The hard drive stores all the computer's information and retains the information when the computer is turned off.






* Data Bus: (internal/external)
The lines on the system bus that CPU uses to send and receive data.






* Computer Program: A combination of computer instructions and data definitions that enable computer hardware to perform computational or control functions.








* Binary: A numbering system with just two numbers. Usually, one and zero. Digital computers reduce everything, ultimately, to strings of ones and zeros.









* Hardware: is a general term that refers to the physical artifacts of a technology. It may also mean the physical components of a computer system, in the form of computer hardware.






* MODEM:
A device that converts digital data into analog signals and vice-versa for transmission over a telephone line.

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