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Definition and Aspects

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1 Definition and Aspects
Multimedia Definition and Aspects T.Sharon-A.Frank

2 What is Multimedia? T.Sharon-A.Frank

3 Modern Multimedia (1) The same story, information, etc, can be represented in different media: text, images, sound, animation, video … All media can be represented digitally as a structured collection of bits: manipulated by programs, stored, transmitted over networks … Digital media can be combined and integrated into multimedia. T.Sharon-A.Frank

4 Modern Multimedia (2) Combination of media is actually commonplace (e.g., TV news) and natural – we perceive the world through all our senses at once. Novelty of digital multimedia is that all media can be treated as data. Programs can manipulate data in response to user input, so digital multimedia can be interactive. T.Sharon-A.Frank

5 Characteristics of Modern Multimedia
Four necessary characteristics: 1. Digital Media 2. Multiple Media 3. Integrated Media 4. Interactive with Human Control T.Sharon-A.Frank

6 Multiple Media Conversion
maps pictures audio ABC text video graphics T.Sharon-A.Frank

7 Device Proliferation T.Sharon-A.Frank

8 Multimedia Workstation
Communication CD-ROM Frame Grabber Voice Recognition Unit Fax Video x Speech Synthesis Unit T.Sharon-A.Frank Graphics Audio

9 Multimedia Overall Configuration
AUTHORING PLAYBACK Videodisc player Removable media CD-ROM Scanner Speakers Video display card Touch screen Sound digitizer Videodisc player

10 Desktop Multimedia Publishing
Camcorder, camera or videodisc player Video or TV Monitor Videotape recorder CD-ROM Audio mixer Sound digitizer High quality video card Speakers T.Sharon-A.Frank

11 Multimedia Application Types
Local MM Stand-alone Networked and Distributed MM Network based Group communication oriented Need QoS (Quality of Service) T.Sharon-A.Frank

12 Online/Offline MM Delivery
Online Delivery: Uses a network (usually the Internet) to send information from one computer to another. Web is commonest form of online delivery of multimedia. Offline Delivery: Removable storage medium is used to carry the data: CD-ROM, DVD. T.Sharon-A.Frank

13 Linearity vs. Non-Linearity
Linear Text Hypertext/Hypermedia T.Sharon-A.Frank

14 Film: fixed order of frames defines a single playback sequence.
Linearity Film: fixed order of frames defines a single playback sequence. Book: physical arrangement of text and pages implies a linear reading order. T.Sharon-A.Frank

15 Non-Linearity Hypermedia: links between pages permit multiple arbitrary reading orders. Flash: jumps between frames, controlled by interactivity, permits branching and loops. T.Sharon-A.Frank

16 Hypertext Hypertext is non linear text. It reflects the way
we think and write ---- definitions models Node Link Thinking Models Writing Models T.Sharon-A.Frank

17 Hypertext on the WWW – HTML

18 Hypermedia Example T.Sharon-A.Frank

19 Hypermedia Multimedia Hypermedia Hypertext T.Sharon-A.Frank

20 So what was the message?! T.Sharon-A.Frank

21 Communication History
Wheel B.C Paper 105 AD Printing Press 1450s Fax 1843 Telephone 1876 Automobile ~1900 Radio 1901 Television 1927 Powered Flight 1903 Computer 1945 The Internet 1973 T.Sharon-A.Frank

22 Boundaries Between: Computing, Communications and Entertainment

23 Multimedia Technology Fueling Convergence of Domains

24 Multimedia in Communication Terms

25 So what’s behind the picture?!

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