1Collecting

This is the process in deciding the data in which you want to collect, finding it and and obtaining (collecting) it.
 * Definition of Collecting:**

Pointing devices Scanners Digital Cameras
 * Hardware used for Collecting**
 * mouse
 * tocuhpad
 * graphics tablet
 * touch screen
 * pen input
 * uses light beams to measure the intesity of reflected light
 * saves as bitmap image
 * uses light sensitive processing chip to capture photographic images in digital for

Video Cameras
 * capture movement on a memeory card- typically saved as MPGEG
 * traditional vid cameras used tapes which were then digitised using digitising cards

Microphones Keyboards
 * captures analogy sound- computers sound card then converts analog sound into digital
 * sends a digital msg to the computer eg: when the letter S is pressed the ASCII (American Standard Code for Information Interchange) code for Upper S is sent to the comp and is diaplayed

OCR devices
 * specialised scanners that read printed characters in a particular format


 * Software used for Collecting**


 * Non-comp tools for Collecting**


 * Social and Ethical issues for Collecting**