INPUT DEVICES Keyboard Mouse Keyboard Enter text and
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 twodimensional stuff like documents and photos.
Handheld Scanner Scan more threedimensional 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
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