Input Devices in computers - basic knowledge

Education

1. Input Devices

2. Objectives Define the term Input Device. List input devices that can be connected to the computer. Explain the function of each input device. State the different types of input devices(plug and play, pointing)

3. Input devices Used to input data in to the computer . Feed data Examples Keyboard Mouse Scanner Touch screen/Touchpad Light pen Barcode reader Joystick Track ball Graphic tablet

4. Keyboard Types of keys Typing keys Numeric keypad Function keys F1 to F12 Control keys Alt Ctrl Enter Home

5. Keyboard cont…

6. Key board layouts QWERTY for the first six letters in the layout Dvorak places the most commonly used letters in the most convenient arrangement

7. Mouse

8. Scanner Hand held Flatbed

9. Touch screen/Touch pad

10. Lighter pen

11. Barcode reader Read information in barcode and input to the computer.

12. Joystick Help to play computer games

13. Useful for those who cannot handle mouse well.

14. Web camera Digital camera

15. Graphic tablet Drawing graphics

16. Pointing devices How to identify Sending command signals to the computer. Selecting items on the screen. Selecting commands from commands menu. Drawing graphs etc. Examples Mouse Trackball Joystick Touch Pad Touch Screen Light Pen Digitizer/Graphic Tablet

17. Plug and play devices Devices that can be hot plug and use USB Mouse Keyboard Digital camera Devices like scanners can not categorize under plug and play Drivers software should be installed

18. END