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Four broad media categories
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telephone mail
television newspaper
Media archetypes
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telephone mail
television newspaper
Distinct technical infrastructures
Switched networkcopper wires
Packet switchedtrucks, planes, trains
Broadcast networkradio waves
broadcast networkprint and deliver
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telephone mail
television newspaper
Distinct actors
AT&T, RBOCs
Paper publishers
USPSFedEx, UPS
CBS, ABC, NBC, Foxcable channels, cable networks
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telephone mail
television newspaper
Distinct policy approaches
Common Carriage(private owners)
1st amendmentLicensing
Common Carriage(government)
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telephone mail
television newspaper
voice mailconference call
answering machine
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telephone mail
television newspaper
telegramovernight delivery
mass mailing
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telephone mail
television newspaper
targeted newsletters
severaleditions per day
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telephone mail
television newspaper
many channels
taped programsreruns
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telephone mail
television newspaper
Internet as convergence
ip telephone email
listservweb-cast
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telephone mail
television newspaper
old distinctions become irrelevant
ip telephone email
listservweb-castweb
CU-seeme
software updates
