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Telecommunications Introduction to telecommunication issues
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New Reality
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Bandwidth Last Mile delivery Ownership Fat or Thin Clients Content Retail and Business-to-Business Digital Superhighway UNDER CON- STRUCTION
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Chip capacity doubles every 18 Months. Gordon Moore Moore’s Law Bandwidth
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Digital Standard Telephone System Analog Network Analog Digital Modem Switch Network
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Telecommunications History Pre 1984 Local and long distance monopoly 1984 AT&T settlement Intense long distance competition 1996 Telecommunications Act Local access competition Bandwidth
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The Telecom Wars AT&T MCI/Worldcom Sprint SBC GTE BT Cable & Wireless BellSouth Quest
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Telephone Changes Rapidly decreasing long distance rates Value added telephone services Cellular access Flat rate long distance? Internet access
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Datagram Logic (IP) Packet n Packet 1Packet 2 3 2 1 3 1 2 3 2 1 PAD
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Telephone Reserved processing 56.6 Kb/sec data speed All traffic follows same route Route determined when call made Delay critical Internet Best effort processing Speed depends on traffic Packets follow different routes Routes determined as packets sent No delay control
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Bandwidth Needs Voice: 56.6 Kbs Data:30KB = 4.2 sec Image:500KB = 70.7 sec Video:500 Kbs (heavily compressed)
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Any time Any place Any way Access
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Standard voice Integrated Services Digital Network Digital Subscriber Lines Cable Modem Direct network connection
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Who controls the desktop Standardization and version management Distribution Payment for access Desktop Control
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Mindshare Ownership
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Bill Gates Client Focus
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Net Focus Larry Ellison
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Issue: e-Business Content Electronic Storefronts Business to Business
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E-commerce
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The Information Paradigm ? Profitability ? Impact on traditional business ? Security ? Privacy
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