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  • Business plan, east carolina university
  • Transcript

    • 1. Emerging Technologies 1 March 2006
    • 2. Agenda
      • Assignments
      • Recap
        • More on digital divide in the US
      • Lecture
      • Discussion Leaders
      • Lab
    • 3. Assignments
      • Paper due Friday
      • Presentation order (M/W) online
        • Max five minutes!
        • Send me files early and I will upload to main computer
    • 4. Recap
      • Access is only part of the Digital Divide story
        • Although most of the DD story is outside our borders, it’s not just outside
      • Look at these data from Pew :
        • Broadband @ Home:
          • Rural: 24% adults
          • Suburban/Urban: 39% adults
    • 5. Emerging Technologies
      • Nature of bits puts pressure on many sectors of society
        • Sometimes the pressure is referred to as “convergence”
      • The latest sector is telephony
    • 6. POTS
      • Mature technology
      • Dedicated voice network
      • End-to-end guaranteed bandwidth
        • Exception: disasters
      • Reasonably good security
      • Meets 9-1-1 regulatory requirements
    • 7. What is VoIP?
      • VoIP (Voice over Internet Protocol) is a way to first digitize voice and then encapsulate it into packets before transmitting over a (non-voice) packet-switched IP network.
      • It is sometimes called “internet telephony”
    • 8. Differences (1/2)
      • Packet-switching versus circuit-switching
        • “Internet” technology allows several calls to use the same bit of bandwidth, because the bandwidth is not dedicated
      • This is possible because our voice is “digitized” and then that file is broken into small packets (bundles of bits)
    • 9. Differences (2/2)
      • Power requirements
        • POTS corded phone works when the power goes out. (Cordless does not! Neither does VoIP.)
      • Telephone line is multi-use infrastructure
        • Some people use it for broadband (DSL)
        • Security systems, DVRs (Tivo, RePlay) “phone home” on it
      • 9-1-1
    • 10. Locked to Computer?
      • No! Businesses already using
      • No! Homeowners already using
      • Computer-to-phone: Skype and (soon?) Microsoft/MCI
      • “ Portable ” VoIP phones use wi-fi networks
        • Who provides “hot-spots”? Mostly telephone companies (AT&T, Verizon, Cingular etc.)
    • 11. PC World , Feb 2006:
      • My People is an Internet phone service provider with a cute name and features like wake-up calls and voice dialing . EQO is a mobile-phone app with a hard-to-pronounce name (actually, it's easy once you know, but it's "echo"--not "E Q O") that lets you place and receive Skype calls. Chili is a wireless gadget from a company with a weird name (ZinkKat) which is designed to let teenagers make VOIP calls, listen to music stored on a PC, and hear text-to-speech versions of RSS feeds--but the demo made it a bit difficult to figure out what exactly was going on.
    • 12. VoIP : The New Phone
      • Subscribers end of 2005: 4.5 – 5.1 million
      • Subscribers end of 2006: 7.9 million
      • US Households by 2010: 115 million
    • 13. Discussion Leaders
      • Group 5
    • 14. Exercise:
      • See if service is available at your current address and determine the cost of service at Vonage and
        • Keep your current number (why?)
        • Make sure equipment costs are included
    • 15. Questions:
      • Despite of all the cool features and great rates of VoIP, what are the factors that may prevent people from NOT going to VoIP in the household?
      • Do you think the impacts of VoIP on society are positive or negative? And why?
      • How will VoIP change the landscape in how we communicate throughout the world?
        • What about those caught in the digital divide – will they be left behind?
    • 16. Summary (1/4)
      • Digital technologies are transforming society at many different levels
      • Characteristics of new media are disruptive
        • “ Zeros and Ones”
        • Modularity
        • Transcoding (tech layer & cultural layer)
      • Impacts on time/space
    • 17. Summary (2/4)
      • Nevertheless, “new” media are more evolutionary than revolutionary
      • The growth in new media communication has led to info overload
        • How do we determine credibility?
        • Who/what used to do this for us?
    • 18. Summary (3/4)
      • Network effects
        • Can affect adoption of new (exclusive) technology
        • Value of network increases exponentially with the size of the network
        • New forms of organization
      • Impacts on media, politics
        • “Emergent democracy”?
    • 19. Summary (4/4)
      • But Many/Most are being left behind
        • What is our responsibility to them?
      • We live in a privileged place in time
    • 20. Lab
      • Help with projects, website, PPTs
        • Help your neighbor?