Transcript The Future of Multimedia

The Future of Multimedia
This Lecture
• Hardware
– Computers
– Input Devices
– Output Devices
• Software
– Development Tools
• Media
• Delivery
• Applications
• Virtual Reality
• The Multimedia
industry
Hardware
• Computers
– Faster
– Cheaper
– half in price, double in power every decade
till 2020
Hardware
• Storage
– Bubble memory
– Erasable optical disks - 10 gigabytes
• 20/30 millisecond access
– Memory cubes
• optical
• 6.5 terabyte (6500 gigabytes, 6500000
megabytes)
– Quicker access
Smaller is Faster
• Tracks 1 micron thick
• million’s of transistors
• RAM - 4 billion data bits cf .256 billion
today
• Nanoelectronics
• Theoretical Limits
• Parallelism, Transputers
• RISC
Virtual Reality
Input Devices
• Biological Feedback
– Sweat, heart rate etc
– Motion - Gloves, body suite, eye
movement, weight shift etc.
– Gestures
• Sensors
• Capture devices
– Standard with PCs and media equipment
– Merged with television and hifi system
Output Devices
• Acceleration
• Helmets are no good
Software - Development Tools
• Bottleneck
• Easier to use
– more powerful software
– Cleverer wizards
• On going activity
• Multimedia tools ‘blurred’ with other
tools e.g. Spreadsheets
• My work
Media
• All media
– more storage = better quality
– faster machines = better quality
• Better representational algorithms
– e.g. fractals
• Digital signatures
• Full digital video
• ‘Clickable’ video
Delivery
• Network Computers
• Digital Broadcasting
– 300 channels
– Internet in the home
– Interactive adverts
Digital Broadcasting
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High Definition Television (HDTV)
Cinema quality
980 Mbit/s to 20 Mbit/s
Convergence with digital audio and data
Multichannel
Three providers in UK this year
Digital Broadcasting
– Video on demand
– pay per view
– interactive TV
• home shopping, education, games
– Traffic information service, management,
navigation
– Business data
– Radio paging
– Special programmes
• magazines, catalogues, newspapers
Network Computers
• Collaboration of Oracle, Apple, IBM,
Netscape, Sun
• No local hard disc or RAM
• Cheap
• Services delivered via powerful servers
• Provide internet access
• NC DesktopTM
• NC Card
Network Computers
• Fast access with only a 28.8 modem
• Cable access
Applications
• Anything computer based!
• Telematics
– Health care
• Remote Education
Applications
• Video Telecommunications
– Two way interactive
• Desk top conferencing
– Video on Demand
– Electronic mail and Conferencing
– Game machine - MPC
CscwComputer Supported
Collaborative Working