1. Multimedia in Web Introduction

2. Multimedia Elements in Web Page Images Voice Music Animation Video Text & Numbers

3. Digitalization Contents  Numbers (0’s & 1’s) For computers and the Internet Different media originated and developed differently, e.g. sound & image  Different formats Accessibility: http://www.w3c.org/WAI/http://www.w3c.org/WAI/

4. Pixels Picture element Values in color and brightness

5. Role of Bandwidth Volume of data can transmit in one second 56K (Dial-up) ISDN 128 Kbits/sec DSL and Cable (Broadband) 512 Kbits/sec T1 1.5 Mbits/sec Ethernet 10-100 Mbits/sec

6. Data Compression Digitalization  Compression  Decompression Codecs = Compression + Decompression Removing repetition: e.g. 405 405 405 405 405  405 X 5

7. Averaging: e.g. 378 379 378 376  378 X 4 Range Reduction: e.g. 8 bit (256)  6 bit (64) Sound loudness can be expressed in 256 levels or 64 levels.

8. File Formats Images GIF JPEG PNG Sound AIF (Audio Interchange File) QuickTime

9. Video QuickTime (mov) Window Media RealVideo Animation Flash

10. Viewer Capacity Consideration Bandwidth Speed test at http://sea.speakeasy.net/http://sea.speakeasy.net/ Screen size & resolution 640 X 480 pixel screen Processor Video System, Ram, & BUS Firewall Plug-Ins: e.g. Flash Player Browser

11. Experience Find types of images used Go to http://www.moma.org/http://www.moma.org/ Right-click on images  Properties Movies: http://www.atomfilms.com/ http://www.ifilm.com/