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COMPUTERS

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     a) Computer : A computer is a programmable machine that receives input, stores and manipulates data, and provides output in a useful format .
en.wikipedia.org/wiki/Computer


  b) Hardware :  components of a computer system.en.wikipedia.org/wiki/Hardware


  c) Software :  Used for digitally stored data such as computer programs and other kinds of information read and written by computers. en.wikipedia.org/wiki/SOFTWARE
  
  d)  Program : Is the process of managing several related projects, often with the intention of improving an organization's performance. In practice and in its aims it is often closely related to Systems engineering.
en.wikipedia.org/wiki/Program_(management)


  e) Input : The term denoting either an entrance or changes which are inserted into a system and which activate/modify a process. en.wikipedia.org/wiki/Input


 f) Output : Data generated or processed for display on a screen, relaying through speakers or headphones, transmission to another system or network. publications.europa.eu/vademecum/vademecum/9313fdfe-c49e-119e-45c6a6441e63e066_en.html
 g) Storage : A data storage device is a device for recording (storing) information (data). en.wikipedia.org/wiki/Storage_(computer_science)

 h) Processing : The act of taking something through a set of prescribed proceduresen.wiktionary.org/wiki/processing

2:

Monitor : The picture on a monitor is made up of three pixels, red, blue, and green to form an image.


Keyboard : Used to type on an computer.

Hard drive : Used to store digital data.

Cooling fan : Used for cooling the computer to stop it from overheating .

RAM : Random access memory.

CPU : An electrical circuit responsible for most of the data processing done by a computer.

Clock : Used to tell the time

Modem : The modem is an internet device.

Video Card : A peice of hardware installed in a computer to allow it to send video signals to an external output device such as a monitor.

Sound Card : A computer hardware device used for genterating and capturing sounds.

Motherboard : An printed circuit board on which the main processor , the memory chips and more are all intergrated.

USB stick : A USB flash drive consists a flash memory data storage device.\

CD Rom : A compact disk that is used with a computer.

DVD drive :  Is an optical disc storage media format.

CD drive : A drive that reads a compact disc and that is connected to an audio system

Floppy Disk : A floppy disk is a data storage medium that is composed of a disk of thin, flexible  magnetic storage medium encased in a square or rectangular plastic shell.

Mouse : A hand-operated electronic device that controls the coordinates of a cursor on your computer screen as you move it around on a pad.

Printer : A process for reproducing text and image, typically with ink on paper using a printing press.

Power supply : A power supply unit (PSU) is the component that supplies power to the other components in a computer.

SATA :  a storage-interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives.
  

PATA : An interface standard for the connection of storage devices such as hard disks, solid-state drives, floppy drives, and CD-ROM drives in computers.


TFT : Thin-film transistor, a technology used in flatscreen displays.


ATI : A supplier of graphics processing units and motherboard chipsets.



Gigabyte:  A multiple of the unit byte for digital information storage.


 DDR SDRAM : a class of memory integrated circuits used in computers.


Pixel : In digital imaging, a pixel  is a single point in a raster image.


PCB :  An electronic assembly which is plugged into the main frame assembly of a complex electronic device or which may be used as the principle element of a simple electronic device

CRT :  a vacuum tube containing an electron gun (a source of electrons) and a fluorescent screen, with internal or external means to accelerate and deflect the electron beam, used to create images in the form of light emitted from the fluorescent screen.


ROM :  Memory whose contents can be accessed and read but cannot be changed