INPUT DEVICES

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

Trackball  Pointing device similar to a Mouse.

Touch pad  Used to move the cursor like the Mouse

Touch Stick  Moves the cursor like a mouse

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

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

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

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

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

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

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

Handheld Scanner  Scan more three- dimensional objects

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

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

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

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

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

Finger print

Facial Recognition

Iris Scan / Retina Scan

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