Introduction to html

What is Multimedia?

The Future of Multimedia

Most books and lectures take the standard approach of starting with the history of multimedia.

In my view this is pretty boring and fails to understand what appears to be happening in the world of multimedia and its potential outcomes.
So what might multimedia look like in the not so distant future?
First off forget wearable technology.
Why bother wearing something when we can simply embed it directly into our body?
It is worth at this point tracking down a copy of Charlie Brooker’s Black Mirror History of You.
In this vision of the near future the technology for accessing and recording multimedia is directly embedded into the body.

Your eyes will present an augmented reality view of the world around you.

Information about the area around you is projected directly into your field of vision along with updates on social networking.
Not only that but auditory implants will allow you to listen to music without headphones and communicate directly to people via voice and video communications wired directly into your nervous system.

Haptic Technology

So far the options for touch based multimedia are quite limited.

In the future we will be able to feel objects by direct communication with our nerve endings.
There are already systems allowing touch to be a part of the multimedia experience

http://www.theengineer.co.uk/news/haptic-feedback-gives-gamers-a-sense-of-touch-in-the-virtual-world/1020257.article

Smelly Vision

One sense that is often neglected in multimedia is the sense of smell.

A “smelly” alarm clock has already been developed that wakes you up with your favourite smell.
The point is that as multimedia currently stands it is quite limited in the range of available senses.

http://www.engadget.com/2015/06/04/i-smelled-a-little-girl-and-i-liked-it/?ncid=rss_truncated

Suck it and See

Perhaps the most neglected sense in multimedia is the sense of taste.

However with a direct interface between our nervous system and technology a whole world of possibilities open up to us.
Sight, sound, touch, taste and smell could all be stimulated directly.
When we sit down to watch a film it will not be the limited 2D experience we have now. Cinema will be a fully immersive experience that takes control of all our senses as if we are really present.
Clearly we are not at that point yet.
Also we haven’t even considered if that future scenario is even desirable.
If we have such technology embedded into our bodies how do we control it?

• 
  Will it come with an off button?
  
• 
  Will we have adverts pumped directly into our heads?
  
• 
  Will everything we do be monitored and tracked?
  

These are important questions that don’t just relate to the above future scenario they are questions that we need to think about in the here and now.

As things stand multimedia very much favours the senses of seeing and hearing.
We have

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  Text – an important part of much multimedia content
  
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  Images – both static and moving
  
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  Audio – e.g. music and spoken
  

What is Multimedia?

• 
  Depends who you are…
  

• 
  PC Vendor
  
  • 
    PC with sound & video
    
• 
  Consumer Entertainment
  
  • 
    Cable TV
    
  • 
    Smart TV
    
  • 
    Online service – Netflix
    
• 
  Developer
  
  • 
    Applications for authoring multimedia
    
  • 
    Text, graphics, animation, video and sound
    
  • 
    Plus interactivity
    
• 
  Convergence – many technologies and disciplines coming together e.g.
  
  • 
    Programming
    
  • 
    Human computer interaction
    
  • 
    Graphic design
    
• 
  Gaming
  

Multimedia is the presentation of a (usually interactive) computer application incorporating combinations of:

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  Text
  
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  Sound
  
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  Video
  
• 
  Animation
  

to communicate content!

Some Possible Applications

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  Video conferencing – Skype
  
• 
  Distance learning – Open University
  
• 
  Cooperative applications – Google docs / on-line games
  
• 
  Augmented reality – Google glass (Last sighted in a local CEX store) – Oculus rift
  

• 
  So many areas of Computing impacted by multimedia
  

Some Landmarks in Multimedia
Newspapers – text & graphics

Rome 59B.C. China 202 B.C

Venice 16C

Johann Gutenberg : the printing press 1450's

Motion pictures - 19^th & 20^th Century – The Jazz Singer 1927 (The first feature-length Hollywood "talkie")
Radio - Marconi 1895
Television / Video 20^th C
1945 MEMEX Vannevar Bush described a theoretical machine able to display books and films with the ability to follow cross-references from one article to another.
1960s Xanadu – Ted Nelson – Hypertext.
1968 Douglas Engelbart – On Line System NLS (Outline Editor, Hypertext Links, Teleconferencing, Word Processing, E Mail, Mouse Pointing Device, Windowing Software and Help Systems.)
1989 Tim Berners-Lee The World Wide Web.

Hypertext and Hypermedia

Hypertext

Coined by Ted Nelson 1965

Linear v Non Linear Media

Hypertext is text based
Hypermedia

Not constrained to text

Other media – graphics, sound or video

(Ted Nelson also the first to use the term!)

World Wide Web – best example of a hypermedia system.

The World Wide Web

Invented by Tim Berners-Lee early 1990s

Hyper Text Transfer Protocol (HTTP)

Originally designed for transmitting hypermedia.

The Uniform Resource Locator identifies the resource accessed.
For example the URL:
http://www.cse.dmu.ac.uk/~mjdean/time.shtml

Problems and Limitations Associated with HTML

There are two issues associated with HTML which need to be considered.

1. 
   Standardisation (or lack of)
   

"Browser Wars."

2. 
   HTML is a mark-up language and is not very good at specifying presentation.
   

Introduction of Cascading Style Sheets.

The World Wide Web Consortium

http://www.w3.org

"W3C primarily pursues its mission through the creation of Web standards and guidelines."
Essentially this is the place to go to find out if the HTML you produce is any good.
One feature provided by the site is a validation tool which tests your HTML to see if it contains errors.
http://validator.w3.org/

Further Reading

http://www.zeltser.com/web-history/

http://www.w3.org

http://validator.w3.org/

http://www.w3schools.com/xhtml/xhtml_html.asp
History of newspapers.

http://www.nyu.edu/classes/stephens/Collier's%20page.htm
MEMEX

http://en.wikipedia.org/wiki/Memex
Nicholas Negroponte – Architecture Machine Group

http://web.media.mit.edu/~nicholas/
NLS

http://sloan.stanford.edu/MouseSite/1968Demo.html
Xanadu Project

http://en.wikipedia.org/wiki/Project_Xanadu
Fundamentals of Multimedia Ze-Nian Li & Mark S Drew