1. Input and Output Devices

2. Input Devices
Parts of Computer,which are used to feed data and commands are called Input Devices
Some Input Devices are:
Keyboard
Mouse
Joy Stick
Scanner
Voice Input System

3. Keyboard
Keyboard is the most commonly used Input Device.The keys on trhe keyboard can be classified as follows:
Alphabetic keys
Numeric keys
Function keys
Symbols keys
Special keys

4. Mouse
Mouse is a pointing device which is used to draw,move and resize the picture and words. It has two or more buttons on the top

5. Joystick
A joystick consists of vertical bar.It can be rotated in various directions.This rotation moves the cursor to the desired position.

6. Scanner
A Scanner is an input device.It is used to make an exact copy of text or a picture and send them to the computer.

7. Speech Recording
Voice speech system is capable of converting human speech into a binary or a machine language.

8. Output Devices
Output devices are the devices which are used to get final result of work done on computer.
Following are some Output Devices:
Monitor or Visual Display Unit
Printers
Plotters
Speakers

9. Monitor
Every Computer has a television like device. It is called monitor or visual display unit. It is used to display information to us.

10. Printers
Types of printers in use today
Laserjet
Inkjet

11. Large Format Printers
Large format printers are used to obtain a graphic or pictorial presentation of the final result (output).Large format printers are used for variety of applications which include drawing graphs, making maps and detailing of houses or cars.

12. Speakers
Speakers are used to listen sounds from a computer system.

13. What else?
Can you think of any other input or output devices?