Slide 1

INPUT DEVICES

Slide 2

KEYBOARD Most common input device for a computer.

Slide 3

Mouse A hand held pointing device that moves a pointer on the screen.

Slide 4

Joystick A stick that translates movement to the screen. Commonly used in video games and flight simulators.

Slide 5

Trackball A moveable ball that moves the pointer around the screen

Slide 6

Touch Pad Flat surface that is sensitive to pressure and motion. It tracks your finger and the mouse cursor corresponds to the movement.

Slide 7

Light Pen A pen that detects input via light on a screen. It allows a user to write information on a screen.

Slide 8

Touch Screen/ Terminal Touch screen that user interacts with to get information.

Slide 9

Digitising Tablet Used to enter drawings and sketches onto a screen and store them in digital form.

Slide 10

Voice Recognition The devices accepts voice commands and carries them out.

Slide 11

Sound Capture Devices Sound Cards that capture voice and turn it into digital form.

Slide 12

Webcam Used for video chatting and video conferencing.

Slide 13

Sensors Used to capture data and monitor changes in states. Used in weather and security systems.

Slide 14

Remote Controls Emits a wireless Signal to the device it controls.

Slide 15

Biometric A reader that checks the distinctive characteristics of a human to identify them. Typically used in fingerprint readers.

Slide 16

Digital Camera They contain a processor that converts the real image to a digital image.

Slide 17

Barcode Reader Reads the code of lines that make up a barcode. Typically used in supermarkets.

Slide 18

OMR Optical Mark Reader. Reads small marks on special forms. Eg. Surveys and questionares and exam papers

Slide 19

OCR Optical character recognition devices. Can read handwritten and printed characters and convert them to an electronic form to be edited. Eg. Scanners

Slide 20

MICR Magnetic ink character recognition reader. Reads text printed with magnetic ink. Eg. Used at banks in processing cheques.

Slide 21

POS Point of Sale. Consists of a main computer and a device to scan the barcode.

Slide 22