Peripherals and Devices Used in Computer

what is computer ?

A Computer is machine which uses input for processing and when the data which is presented to it get processed with the help of computer core architecture and when the data is processed it send the data to output with the help of output devices of computer.

The full form of computer may varies from person to person but according to me i called it as C =  commonly o=operating M=machine p=particularly u=used t=technical e=education and r=research.

Therefore i can say that computer is a device which is called as commonly operating machine which is particularly used for technical education and research.

The use of computer has reached to every corner of human society.

computer uses many peripherals and devices for data sharing and to run properly .There are mainly two types of computer devices which are present inside and outside the CPU [central processing unit].

  • Input Devices of computer.
  • output Devices of computer.

What are the input devices of computer System? ::

Input devices are those devices which are commonly used to enter raw data to the computer for example :;

let say you have entered 2+2 from keyboard now keyboard is one of the primary device of computer system and when you enter the raw data directly goes to computer for processing and with the help of ALU [Arithmetic Logic Unit] the data get processed and finally we get our desired output.

Following is the complete list of Input devices which are used in computer system.

  • Keyboard
  • Mouse
  • Scanner
  • Trackball
  • Joystick
  • LightPen
  • Touchscreens
  • Optical Card Reader (OCR)

Keyboard :: There are mainly there types of keyboard used these days ps2,usb and wireless.They have a numeric keypad a character keys and functions keys plus special keys which are used to receive desired output when pressed.

Mouse :: There are three types of mouse used these days ps2 , usb ,and wireless.mainly there are 2 keys and a scroll wheel to scroll the pages.

What are the output devices of computer system?

Output devices are those device which are responsible to producing the correct output such as VDU [Visual Display Unit]. for example ::

Let say you have scanned a image with help of input device such as scanner and  now you have received a hard copy of that image using a printer therefore printer is called as output device.

The information which is being displayed on the computer screen like you are watching a movie or playing a song and it is viewed on monitor so the images of videos which are being displayed on monitors are called as output devices.

Following is the complete list of Input devices which are used in computer system.

  • Monitors
  • Touch Screens
  • LCD Monitors or LED Monitors
  • Printers
  • Speakers
  • Headphones

 

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