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Transcript of Broadcast Technology RTV 151 Telephony Internet & WWW Broadband & Wireless Digital Mobile...
Broadcast TechnologyRTV 151
Broadcast TechnologyRTV 151
TelephonyInternet & WWW
Broadband & Wireless DigitalMobile Communication
TelephonyInternet & WWW
Broadband & Wireless DigitalMobile Communication
Internet ReviewInternet Review
Advanced Research Projects AgencyPentagon / University relationship
LANs and WANsSingle location / wide geographic area
ARPANET combined with LANs and WANs became the Internet in 1983TCP/IP protocol (Bob Kahn and Vint Cerf)Packet switching and IP addresses
Advanced Research Projects AgencyPentagon / University relationship
LANs and WANsSingle location / wide geographic area
ARPANET combined with LANs and WANs became the Internet in 1983TCP/IP protocol (Bob Kahn and Vint Cerf)Packet switching and IP addresses
Domain Name System (DNS)
Domain Name System (DNS)
IP address 158.135.172.2 Text-based DNS translates human language into
the computer’s ‘phone number’ TLD -- .com , .net, .edu (sometime gTLD)
ccTLD -- country code -- .ca , .uk (list)Determined by IANA, Internet Assigned Numbers
Authority
Organizational identifier – tamuc , google Domain names administered by ICANN -- Internet
Corporation for Assigned Names and Numbers Buy domains from registrars (Mad Dog,
GoDaddy, 1and1)
IP address 158.135.172.2 Text-based DNS translates human language into
the computer’s ‘phone number’ TLD -- .com , .net, .edu (sometime gTLD)
ccTLD -- country code -- .ca , .uk (list)Determined by IANA, Internet Assigned Numbers
Authority
Organizational identifier – tamuc , google Domain names administered by ICANN -- Internet
Corporation for Assigned Names and Numbers Buy domains from registrars (Mad Dog,
GoDaddy, 1and1)
Programs on the Internet…
Programs on the Internet…
WWW -- Tim Berners-Lee devised HTML language which led to Mosaic
A browser interprets the HTML Web page creation...
XML--extensible markup languageSOAP--simple objects access protocol
(based on XMLXHTML--another form of XMLVRML
App creation
WWW -- Tim Berners-Lee devised HTML language which led to Mosaic
A browser interprets the HTML Web page creation...
XML--extensible markup languageSOAP--simple objects access protocol
(based on XMLXHTML--another form of XMLVRML
App creation
Programs on the Internet…
Programs on the Internet…E-mail (now email)
Newsgroups / Usenet (link) see chapter
Chat / IM (AIM, iChat, Meebo)Telnet (link)FTP (Fetch, etc.)Internet Phone (Skype, Google Voice) Web 2.0 (blogs, Second Life,
podcasts…) Video streams (Bittorent, Veoh, Hulu, clicker)
E-mail (now email)Newsgroups / Usenet (link) see
chapterChat / IM (AIM, iChat, Meebo)Telnet (link)FTP (Fetch, etc.)Internet Phone (Skype, Google Voice) Web 2.0 (blogs, Second Life,
podcasts…) Video streams (Bittorent, Veoh, Hulu, clicker)
What’s going on today…What’s going on today…
Blogs / moblogs / vlogs Journalism / bloggers
RSS feedsPodcasts, etc. / newsreader software
New economic models -- Google Legal issues -- RIAA, MPAA Other issues
Malware, Digital Divide, charging fees to Internet sites, net neutrality (Comcast)
Blogs / moblogs / vlogs Journalism / bloggers
RSS feedsPodcasts, etc. / newsreader software
New economic models -- Google Legal issues -- RIAA, MPAA Other issues
Malware, Digital Divide, charging fees to Internet sites, net neutrality (Comcast)
Web 2.0?Web 2.0? Google Docs (YouTube ‘tutorial’) / Drive Apple OS X development, Chrome,
Windows What is ‘Digital Media’? / New Media --
Canada DMS What is ‘Internet 2’? (chapter)
Increase speedsSpread technologies and applicationsTake advantage of digital libraries, virtual
laboratories, tele-immersion What is Web 2.0?
Google Docs (YouTube ‘tutorial’) / Drive Apple OS X development, Chrome,
Windows What is ‘Digital Media’? / New Media --
Canada DMS What is ‘Internet 2’? (chapter)
Increase speedsSpread technologies and applicationsTake advantage of digital libraries, virtual
laboratories, tele-immersion What is Web 2.0?
Web 2.0Web 2.0
What is…What is…
Digg?Stumble Upon?Photobucket?Jumpcut?The WayBack Machine?The Machine is using us?Otherwise going on…………. ?
Digg?Stumble Upon?Photobucket?Jumpcut?The WayBack Machine?The Machine is using us?Otherwise going on…………. ?
Mobile Computing DevicesMobile Computing Devices PDAs (personal digital assistant – ‘Newton’)
Functions / changes through the years GPS
Vehicle fixed / portable Satellite connection vs. most others
Cell Phones iPhone example (smart phone)
Portable Video Games GameBoy, Nintendo DS, Sony PSP / music, movies
Ultra Mobile PCs -- Origami / Microsoft (site) CES -- Microsoft focus on touch / voice recognition
Wearable Computers? Tablets
PDAs (personal digital assistant – ‘Newton’) Functions / changes through the years
GPS Vehicle fixed / portable Satellite connection vs. most others
Cell Phones iPhone example (smart phone)
Portable Video Games GameBoy, Nintendo DS, Sony PSP / music, movies
Ultra Mobile PCs -- Origami / Microsoft (site) CES -- Microsoft focus on touch / voice recognition
Wearable Computers? Tablets
Broadcasting vs. streaming
Broadcasting vs. streaming
DTV – multicastingDVB-H (digital video broadcasting -
handheld) standard for broadcasting to handsets
DMB (digital multimedia broadcasting) for multimedia broadcasting -- not available in North America
Streaming allows VOD – (mobile TV)-AT&T Mobile (MediaFlo)…failed Verizon (ended 2012) --mDTV. Ch.6
Backseat TV (ending 12/31/15)
DTV – multicastingDVB-H (digital video broadcasting -
handheld) standard for broadcasting to handsets
DMB (digital multimedia broadcasting) for multimedia broadcasting -- not available in North America
Streaming allows VOD – (mobile TV)-AT&T Mobile (MediaFlo)…failed Verizon (ended 2012) --mDTV. Ch.6
Backseat TV (ending 12/31/15)
Developing TechnologiesDeveloping Technologies 3G / 4G cell phones -- packet and circuit switching Wi-Fi
802.11 and 802.11x refers to a family of specifications developed by the IEEE for wireless LAN technology.
Institute of Electrical and Electronics Engineers, pronounced I-triple-E
WiMax Also known as IEEE 802.16--intended for wireless
"metropolitan area networks". Provides broadband wireless access (BWA) up to 30 miles (50 km) for fixed stations, and 3 - 10 miles (5 - 15 km) for mobile stations.
WiFi/802.11 wireless local area network standard is limited in most cases to only 100 - 300 feet (30 - 100m).
Clearwire bought by Sprint (phased out as separate)
3G / 4G cell phones -- packet and circuit switching Wi-Fi
802.11 and 802.11x refers to a family of specifications developed by the IEEE for wireless LAN technology.
Institute of Electrical and Electronics Engineers, pronounced I-triple-E
WiMax Also known as IEEE 802.16--intended for wireless
"metropolitan area networks". Provides broadband wireless access (BWA) up to 30 miles (50 km) for fixed stations, and 3 - 10 miles (5 - 15 km) for mobile stations.
WiFi/802.11 wireless local area network standard is limited in most cases to only 100 - 300 feet (30 - 100m).
Clearwire bought by Sprint (phased out as separate)
Why 802?Why 802?
The 802 group is the section of the IEEE involved in network operations and technologies, including mid-sized networks and local networks. Group 15 deals specifically with wireless networking technologies, and includes the now ubiquitous 802.15.1 working group, which is also known as Bluetooth.
The 802 group is the section of the IEEE involved in network operations and technologies, including mid-sized networks and local networks. Group 15 deals specifically with wireless networking technologies, and includes the now ubiquitous 802.15.1 working group, which is also known as Bluetooth.
More wireless data transfer…
More wireless data transfer…
Like AppleWatch, ApplePayNear field communication (NFC)
is the set of protocols that enable electronic devices to establish radio communication with each other by touching the devices together, or bringing them into proximity to a distance of typically 10cm or less.
Like AppleWatch, ApplePayNear field communication (NFC)
is the set of protocols that enable electronic devices to establish radio communication with each other by touching the devices together, or bringing them into proximity to a distance of typically 10cm or less.
Developing TechnologiesDeveloping Technologies Bluetooth
Name comes from Harald Bluetooth, king of Denmark in the late 900s
There are lots of different ways that electronic devices can connect to one another--Component cables, Electrical wires, Ethernet cables, WiFi, Infrared signals…
Bluetooth is essentially a networking standard that works at two levels:
It provides agreement at the physical level -- Bluetooth is a radio-frequency standard;
AND, it provides agreement at the protocol level, where products have to agree on when bits are sent, how many will be sent at a time, and how the parties in a conversation can be sure that the message received is the same as the message sent. (headphones, cell phone, GPS, PDA--Starfield example)
Bluetooth Name comes from Harald Bluetooth, king of Denmark
in the late 900s There are lots of different ways that electronic devices
can connect to one another--Component cables, Electrical wires, Ethernet cables, WiFi, Infrared signals…
Bluetooth is essentially a networking standard that works at two levels:
It provides agreement at the physical level -- Bluetooth is a radio-frequency standard;
AND, it provides agreement at the protocol level, where products have to agree on when bits are sent, how many will be sent at a time, and how the parties in a conversation can be sure that the message received is the same as the message sent. (headphones, cell phone, GPS, PDA--Starfield example)
Developing TechnologiesDeveloping Technologies
ZigBee The set of specs built around the IEEE 802.15.4
wireless protocol. Name "ZigBee" derived from the erratic zigging
patterns many bees make between flowers when collecting pollen. The standard is regulated by a group known as the ZigBee Alliance, with over 150 members worldwide.
Bluetooth focuses on connectivity between large packet user devices--laptops, phones, major peripherals….
ZigBee is designed to provide highly efficient connectivity between small packet devices.
ZigBee The set of specs built around the IEEE 802.15.4
wireless protocol. Name "ZigBee" derived from the erratic zigging
patterns many bees make between flowers when collecting pollen. The standard is regulated by a group known as the ZigBee Alliance, with over 150 members worldwide.
Bluetooth focuses on connectivity between large packet user devices--laptops, phones, major peripherals….
ZigBee is designed to provide highly efficient connectivity between small packet devices.
Developing TechnologiesDeveloping Technologies WPAN
Wireless personal area network Bluetooth and Zigbee Personal hotspots
RFID “IBM Uses RFID to Track Conference Attendees” “New chip promises to track kids from miles
away” Tracks things and people
DTV? / HD Radio Multicasting channels -- data transmission? Two way interactivity FCC approval
WPAN Wireless personal area network Bluetooth and Zigbee Personal hotspots
RFID “IBM Uses RFID to Track Conference Attendees” “New chip promises to track kids from miles
away” Tracks things and people
DTV? / HD Radio Multicasting channels -- data transmission? Two way interactivity FCC approval
Technical changesTechnical changes
Copper wires to fiber optic cableCircuit Switching to packet
switchingLandline to wirelessConvergence of technologies and
companies
Copper wires to fiber optic cableCircuit Switching to packet
switchingLandline to wirelessConvergence of technologies and
companies
Technical examplesTechnical examples
Fiber Optics (how they work) Early telephones (women as operators) Early telephones (dialing a rotary phone) (push button phone) Making ‘free’ phone calls (how VoIP works
)Skype / Ooma / Magic Jack / Apple FaceTimeNetzero Voice / Messenger / iChat Jajah.com (closed 2013)Google Voice
Fiber Optics (how they work) Early telephones (women as operators) Early telephones (dialing a rotary phone) (push button phone) Making ‘free’ phone calls (how VoIP works
)Skype / Ooma / Magic Jack / Apple FaceTimeNetzero Voice / Messenger / iChat Jajah.com (closed 2013)Google Voice
Cell PhonesCell Phones
Early -- 2-way radio type service Phone / ‘cells’ / towers
Ugly towers? Connects to Mobile Telephone Switching
Office (MTSO)Going to another cell phone in same area on
same service, routed to another towerTo another service or a landline, routed to the
Public Switched Telephone Network (PSTN)
Early -- 2-way radio type service Phone / ‘cells’ / towers
Ugly towers? Connects to Mobile Telephone Switching
Office (MTSO)Going to another cell phone in same area on
same service, routed to another towerTo another service or a landline, routed to the
Public Switched Telephone Network (PSTN)
GenerationsGenerations
‘two-way radio’ style ‘cellular’ process developed by (‘old’) AT&T IG -- analog -- 1983 -- AMPS -- ‘advanced
mobile phone service 2G -- digital introduction -- early 1990s
CDMA, TDMA initially in the U.S. (CDMA: Sprint, Verizon)
GSM type adopted first in Europe (AT&T / T-Mobile)
‘two-way radio’ style ‘cellular’ process developed by (‘old’) AT&T IG -- analog -- 1983 -- AMPS -- ‘advanced
mobile phone service 2G -- digital introduction -- early 1990s
CDMA, TDMA initially in the U.S. (CDMA: Sprint, Verizon)
GSM type adopted first in Europe (AT&T / T-Mobile)
GenerationsGenerations
3G -- higher data transmission speeds -- switch to packet switching (Interim -- ‘2.5G’ ‘Edge’)
Verizon, AT&T, Sprint & T-Mobile all offer high speed 3G wireless networks. All moving to 4G...but, interim technologies
3G -- about 3 mbps throughput; 4G about 10 mbps (about 10x faster)
Based on phone AND network infrastructure
3G -- higher data transmission speeds -- switch to packet switching (Interim -- ‘2.5G’ ‘Edge’)
Verizon, AT&T, Sprint & T-Mobile all offer high speed 3G wireless networks. All moving to 4G...but, interim technologies
3G -- about 3 mbps throughput; 4G about 10 mbps (about 10x faster)
Based on phone AND network infrastructure
Today…Today… Although GSM and CDMA are often the
foundation…also LTE, HSPDA, UMTS High-Speed Downlink Packet Access
(HSDPA) is an enhanced 3G system UMTS (Universal Mobile
Telecommunications Service) is a 3G broadband, packet-based transmission of text, VOIP, video, and multimedia at data rates up to 2 Mbps. UMTS is based on the Global System for Mobile (GSM) communication.
Although GSM and CDMA are often the foundation…also LTE, HSPDA, UMTS
High-Speed Downlink Packet Access (HSDPA) is an enhanced 3G system
UMTS (Universal Mobile Telecommunications Service) is a 3G broadband, packet-based transmission of text, VOIP, video, and multimedia at data rates up to 2 Mbps. UMTS is based on the Global System for Mobile (GSM) communication.
3G vs. 4G3G vs. 4G
ExplanationDirect link
ExplanationDirect link
Cell phone as hybrid medium
Cell phone as hybrid medium
Delivery of video to cellular phones became widespread… voice / data … and
Verizon’s V-Cast service (3G EV-DO) MobiTV service.
Both use the cellular network to deliver the content.
New service and technology, MediaFlo, developed by Qualcomm, used part of the television broadcasting spectrum (channel 55) to send multi-media content to mobile phones (as noted before).
Allows wireless carriers to offer video content without taking up much needed bandwidth in their cellular network.
Delivery of video to cellular phones became widespread… voice / data … and
Verizon’s V-Cast service (3G EV-DO) MobiTV service.
Both use the cellular network to deliver the content.
New service and technology, MediaFlo, developed by Qualcomm, used part of the television broadcasting spectrum (channel 55) to send multi-media content to mobile phones (as noted before).
Allows wireless carriers to offer video content without taking up much needed bandwidth in their cellular network.
What is broadband?What is broadband?
ITU -- minimum speed of 256 kilobits/second
FCC -- 1996 Telecommunications Act: 200 Kb/s bidirectionally,
Wired Wireless Satellite Alternate: DTV multicast channels (etc.)
ITU -- minimum speed of 256 kilobits/second
FCC -- 1996 Telecommunications Act: 200 Kb/s bidirectionally,
Wired Wireless Satellite Alternate: DTV multicast channels (etc.)
Broadband delivery -- wired
Broadband delivery -- wired
DSL DSLAM / extenders (digital subscriber line access multiplexer) IPTV (AT&T: U-verse, Verizon: FiOS) Dedicated line (no slowdown)
Cable modem (DOCSIS -- 1.0 / 2.0 / 3.0) Data Over Cable Service Interface Specification Shared down trunk line (slowdown) Information service / no open access
Fiber to the home/premises (FTTH/P) FTTN -- fiber to the node (last mile is coaxial cable for
cable & twisted-pair copper for DSL) … vs. AT&T now with U-verse build
Broadband over power line (BPL) Interference State approval
DSL DSLAM / extenders (digital subscriber line access multiplexer) IPTV (AT&T: U-verse, Verizon: FiOS) Dedicated line (no slowdown)
Cable modem (DOCSIS -- 1.0 / 2.0 / 3.0) Data Over Cable Service Interface Specification Shared down trunk line (slowdown) Information service / no open access
Fiber to the home/premises (FTTH/P) FTTN -- fiber to the node (last mile is coaxial cable for
cable & twisted-pair copper for DSL) … vs. AT&T now with U-verse build
Broadband over power line (BPL) Interference State approval
Broadband delivery -- wireless
Broadband delivery -- wireless
Fixed wireless broadband (FWB) (from MMDS)
3G mobile wireless (4G / pre-4G) Wi-Fi (IEEE 802.11) (‘WLAN’) Wi-Max (802.16) (www.clear.com) Satellite
HughesNet & WildBlue (several now)Latency problem (VoIP, games) “a time
delay between the moment something is initiated, and the moment one of its effects begins or becomes detectable”
Fixed wireless broadband (FWB) (from MMDS)
3G mobile wireless (4G / pre-4G) Wi-Fi (IEEE 802.11) (‘WLAN’) Wi-Max (802.16) (www.clear.com) Satellite
HughesNet & WildBlue (several now)Latency problem (VoIP, games) “a time
delay between the moment something is initiated, and the moment one of its effects begins or becomes detectable”
Broadband today (3)Broadband today (3) Discussion over past several years as
Hulu, Netflix and others changed how we get TV shows and movies.
Consumers themselves are driving this "broadband or TV" debate into irrelevance.
They're busy accessing programming on demand - whether "broadband" or "TV" - through a host of devices and services whose popularity is only going to skyrocket in the future. These include TiVo, Xbox, Netflix, Amazon and many others.
Discussion over past several years as Hulu, Netflix and others changed how we get TV shows and movies.
Consumers themselves are driving this "broadband or TV" debate into irrelevance.
They're busy accessing programming on demand - whether "broadband" or "TV" - through a host of devices and services whose popularity is only going to skyrocket in the future. These include TiVo, Xbox, Netflix, Amazon and many others.
Broadband Today (4)Broadband Today (4)
With the proliferation of available broadband video comes a massive user navigation challenge. Modern Feed launched (4/8/08) (became Clicker) to address this.
Part search engine, part aggregator, with a specific focus on indexing professionally-produced programming, not user-generated video. It's also focused on actual programs, not promotional clips. (failed)
With the proliferation of available broadband video comes a massive user navigation challenge. Modern Feed launched (4/8/08) (became Clicker) to address this.
Part search engine, part aggregator, with a specific focus on indexing professionally-produced programming, not user-generated video. It's also focused on actual programs, not promotional clips. (failed)
Broadband Today (5)Broadband Today (5)
J.D. Heilprin, Modern Feed's founder/CEO: the company is targeting mainstream users
providing the easiest way to find available, high-quality video.
It employs a team of "Feeders" charged with curating the best videos to include on the site. The result is approximately 550 "networks" and 25,000 pieces of content now indexed
”Networks" is a loose term ranging from traditional broadcasters to indies new entrants like Boston Symphony or Architectural Digest.
Name changed to Clicker All My Children, One Life to Live examples
J.D. Heilprin, Modern Feed's founder/CEO: the company is targeting mainstream users
providing the easiest way to find available, high-quality video.
It employs a team of "Feeders" charged with curating the best videos to include on the site. The result is approximately 550 "networks" and 25,000 pieces of content now indexed
”Networks" is a loose term ranging from traditional broadcasters to indies new entrants like Boston Symphony or Architectural Digest.
Name changed to Clicker All My Children, One Life to Live examples
Go back and forward a bitGo back and forward a bitGames
HMD, virtual reality, immersive actionAutomotive telematics
Smart carNow, smart home
E-HealthWearablesBody monitor and communication
GamesHMD, virtual reality, immersive action
Automotive telematicsSmart carNow, smart home
E-HealthWearablesBody monitor and communication
Home NetworksHome Networks
Residential gateway (aka - cable/DSL router) ‘the key device in most home networks’
Wired (server / hub / router) LAN Wireless (wi-fi / WLAN / 802.11) Interconnects all computers and other IP
devices Connects the home network to the
broadband connection
Residential gateway (aka - cable/DSL router) ‘the key device in most home networks’
Wired (server / hub / router) LAN Wireless (wi-fi / WLAN / 802.11) Interconnects all computers and other IP
devices Connects the home network to the
broadband connection
‘Specs’ Technical specifications or standards
‘Specs’ Technical specifications or standards Like all issues – establish technical
standards HPNA -- Home Phoneline Networking
Alliance -- technology, built on Ethernet, allows all the components of a home network to interact over the home's existing telephone wiring without disturbing the existing voice or fax services
IEEE -- Institute of Electrical and Electronics Engineers
Like all issues – establish technical standards
HPNA -- Home Phoneline Networking Alliance -- technology, built on Ethernet, allows all the components of a home network to interact over the home's existing telephone wiring without disturbing the existing voice or fax services
IEEE -- Institute of Electrical and Electronics Engineers
Proprietary or agreed-upon?
Proprietary or agreed-upon?
VHS vs. Beta (home)DVD-R / DVD-RW vs. DVD+R / RW
vs. RAMSD cards or compact flash cardsHD-DVD vs. BluRayWMA vs. RealPlayer vs. Quicktime
etc. codecs HDTV (8-VSB / COFDM)
VHS vs. Beta (home)DVD-R / DVD-RW vs. DVD+R / RW
vs. RAMSD cards or compact flash cardsHD-DVD vs. BluRayWMA vs. RealPlayer vs. Quicktime
etc. codecs HDTV (8-VSB / COFDM)
Home ‘hot spot’ Applications?
Home ‘hot spot’ Applications?Multiple networked computers
Computers share one printerIntegration of phone / cable or
satellite systems / DVR, Slingbox, Netflix, digital linear channels, etc. with IP
Security system connectionsAutomotive telematics
Multiple networked computersComputers share one printerIntegration of phone / cable or
satellite systems / DVR, Slingbox, Netflix, digital linear channels, etc. with IP
Security system connectionsAutomotive telematics
Home ‘hot spot’ Applications?
Home ‘hot spot’ Applications? Control any IP device -- Microsoft has
been working with Whirlpool to allow users to monitor their laundry with their home network, computer, TV, and cell phone.
Continuing growth in American homes operating a wireless network, making the US the leader in adoption of wireless home networks.
Control any IP device -- Microsoft has been working with Whirlpool to allow users to monitor their laundry with their home network, computer, TV, and cell phone.
Continuing growth in American homes operating a wireless network, making the US the leader in adoption of wireless home networks.
Wireless securityWireless security
Wireless ‘cloud’ -- public places Encryption types
WEP -- Wired Equivalency Privacy easily hacked -- do a ‘Cracking wi-fi’ or cracking WEP search on
YouTubeWireless Hacking / WEP hacking / Free wi-fi anywhere
WPA -- Wi-Fi Protected Access 128 bit encryption WPA Personal -- password protected WPA-Enterprise -- server verified
Evil Twins Phony hotspots to steal information
Wireless ‘cloud’ -- public places Encryption types
WEP -- Wired Equivalency Privacy easily hacked -- do a ‘Cracking wi-fi’ or cracking WEP search on
YouTubeWireless Hacking / WEP hacking / Free wi-fi anywhere
WPA -- Wi-Fi Protected Access 128 bit encryption WPA Personal -- password protected WPA-Enterprise -- server verified
Evil Twins Phony hotspots to steal information
What else?What else? RFID (ubiquitous?) Smart Home (video) / robotics Speech recognition
Types: Discrete, continuous & complete Speech recognition gone awry Better success demo (click screen when page
loads) Ultra HD video (cinema--replace film
projection) Electronic paper (Kindle, iPad) (e-paper
demo) Wikis
GIGO conundrum?LA Times experimentGoogle docs as collaborative authoring?
RFID (ubiquitous?) Smart Home (video) / robotics Speech recognition
Types: Discrete, continuous & complete Speech recognition gone awry Better success demo (click screen when page
loads) Ultra HD video (cinema--replace film
projection) Electronic paper (Kindle, iPad) (e-paper
demo) Wikis
GIGO conundrum?LA Times experimentGoogle docs as collaborative authoring?
Virtual / Augmented Reality (RWWW)
Virtual / Augmented Reality (RWWW)
Second Life (promo/commercial)Google Earth and other
competitorsEducation, Entertainment, etc. in a
‘virtual world’?Google Glass
Second Life (promo/commercial)Google Earth and other
competitorsEducation, Entertainment, etc. in a
‘virtual world’?Google Glass
Semantic webSemantic web
Computer speed, power and storage
How to simulate touch, smell, tasteHMD, haptics, immersive
environmentHuman-computer interfaceThinking machines ###
Computer speed, power and storage
How to simulate touch, smell, tasteHMD, haptics, immersive
environmentHuman-computer interfaceThinking machines ###