1. INPUT DEVICES

2. Keyboard & Mouse  Keyboard: Enter text and commands  Mouse: Point, Select & enter Commands

3. Trackball  Pointing device similar to a Mouse.

4. Touch pad  Used to move the cursor like the Mouse

5. Touch Stick  Moves the cursor like a mouse

6. Touchscreen  Sensitive screen detects area touched  Used in ATM machines  PDAs  Very easy to use

7. Lightpen  Light sensitive wand used to point and select as well as to draw on the screen  Similar to a touch screen

8. Digitizing tablet /Graphics tablet  Easily hand draw images and graphics on the computer  Used by Engineers, Architects, Artists etc.

9. Web Camera  Enter Images, Videos  Security monitors  Communication over the Internet

10. Joystick  Used in Video games  Flight simulator  Control machines, cranes etc.

11. SCANNERS: Converts Pictures, Text, Handwriting & Objects to a digital image on the computer.

12. Flatbed Scanner  Scans two-dimensional stuff like documents and photos.

13. Handheld Scanner  Scan more three- dimensional objects

14. Bar code Scanner/Reader  Scans the barcode on products to get info on price, expiry date etc.  Used in supermarkets point of sales terminal  Libraries

15. Optical Mark Reader (OMR)  Reads marks on paper  Used to grade multiple choice  Lottery systems

16. Magnetic Ink Character Reader(MICR)  Used by banks to verify cheques

17. Optical Character Reader (OCR)  Transfers text to the computer  Used to help blind people read.

18. BIOMETRICS: Automatic method of recognizing an individual based on a measurable physical or behavioral characteristic.

19. Finger print

20. Facial Recognition

21. Iris Scan / Retina Scan

22. Voice recognition  Identify a person by his voice  Computer interprets spoken words and are given instructions verbally.  Used by physically impaired