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Harware and software (HARDWARE: Physical components of the computer, such…
Harware and software
HARDWARE: Physical components of the computer, such us electrical circuit inside the, wiring and the monitor.
Internal components
C.P.U: It is most important part of a computer. It's the machine "brain". It interprets instructions from program and processes data , as well as managing and controling the Entine System. The CPU , or microprocessor,is a chip (chips consist of many different electronic component)
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Storage devices:
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Optical:
CD Rom,DVDS, and blue discs(BD ) are compact discs that are read by taser bean they have a large storage capacity around 700MB in the case of the CDRom , between 4,7GB for a DVD and 25GB in the case of BD.
Solid state Devices: (Flash Memories) (Used in pen drives memory sticks and memory cards ) It very compact and has a large storage capacity up to several TB. It can be access really quickly.
Software
It's the set of programms or instructions that starts up the computer and processes data o that we can use it. Free software or OPEN SOURCE can be used , modified and redistributed freely.
Operating System (O.S) and Drivers allow us to use the different peripheral devices. The OS is loaded from the hard drive and store in RAM memory where it remains until the computer is turned off. The most popular OS for computer are Windows,Macos and Lihux
Applications: Word processor, speed sheers , data bases , tools for processing images and graphic programs and games.
Peripheral devices:
Input
Keyboard: Enters data (characters, letters and numbers ) and use the computer to perform a number of specific functions.
Mouse: Allow us to perform a number of actions by moving the pointer or cursor (usually an arrow) and presing a button.
Others: Microphones, webcome, scanner, barcode reader,game controller (dual shock)
Output
Printer: This prints information in different formats normal paper, photographic paper and transparent recies. There's also 3D printing. Which uses plastic threads.
Speakers, Projector,Earphones
Screen or monitor: It displays images or texts, it has button to control the brightness, the contrast...
Input/Output
This make it possible to enter information out of a computer. Tablets and smartphones are proper computer that have a microprocessor, memory and storage devices. They have in put devices (for example a screen keyboard, a camera and sensors) and output devices ( a screen ) , as well as wireless connection for sending data to a computer or other devicesl