1. Introduction to Digital Media 1

2. What is digital media? Digital media is a form of electronic media where data is stored in digital (as opposed to analog) form. It can refer to the technical aspect of storage and transmission (e.g. hard disk drives or computer networking) of information or to the "end product", such as digital video, augmented reality or digital art. ---www.wikipedia.com 2

3. In this class  We are mainly interested in digital media forms found on and transmitted across the Internet, how they work and how to manipulate them  We will cover topics such as  audio  still images  bitmapped  vector graphics  moving images  video camera  3D animation

4. Types of digital media  Time-based  Media that changes over time  Film  Video  Audio  Static media  Media that doesn’t change over time  Pages in a book  Photos in an album  Images on a webpage

5.  Linear  Book  Video  Audio  Non-linear  Encyclopedia  Dictionary  Interactive Video Games  World Wide Web Types of digital media 5

6. How do we represent the real world using computers  so that one can save it  so that one can manipulate it  so that one can send it to others  so that others can receive and see it

7. The answer is  Represent the real world as numbers  Store the numbers  Transmit the numbers  Retrieve the numbers  Display them in a form humans understand

8.  Everything is numbers  Picture  Music  Video  Text  PDF  … Everything in a computer is numbers

9. Note on paper

10. Picture

11. Audio

12. Video

13. So it’s all just numbers, and binary numbers at that! So it’s all just numbers, and binary numbers at that! We will learn numbering systems soon!