Category : 1st Class
Computer Components
Introduction
Computer components are the devices which help computer to work properly. Computer Devices can be classified into following four parts:
2. Storage Devices
3. Processor
4. Output Devices
Input Devices
Input devices allow the user to enter information into the system.
Some input devices are:
Mouse
Mouse is a pointing device. It has two click buttons and one scroll wheel. It is used to manipulate object on a computer screen.
Keyboard
Keyboard is a set of keys that enables you to enter data into a computer.
Joystick
Joystick is a control device that enables a user to move an object on the screen and is mainly used for playing video games.
Light Pen
It is a hand held light sensitive input device used for drawing on the computer screen.
Barcode Reader
Barcode reader is an input device used for scanning the information printed on the product in the form of barcode.
Web camera
A webcam is a video camera that captures image in real time through a computer network.
Microphone
Microphone is used to record your voice into the computer.
Touch screen
Touch screen allows the user to interact with a computer by using their fingers.
Storage devices
A storage device is used for storing information. It can hold information both temporarily and permanently.
Some Storage devices are:
Processing Device
CPU is the main unit of a computer for the data processing. It is also known as the brain of computer system that carries out the processing of the given data and provides the output.
Output Devices
An output device is any device used to send data from a computer to another device.
Some output devices are
Monitor
Monitor is used to display the result processed by the computer. Monitors are classified into 3 types.
2. Liquid Crystal Display (LCD)
3. Light Emitting (LED)
Printer
Printer is the output device which is used for printing the text and images.
Speaker
Speaker is an electronic output device which is used to hear the sound using a computer.
Things to Remember
Answer Me
1. Write the names of the images.
2. Tick ( √ ) the input device.
3. Tick ( √ ) the output device.
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