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iTV DICTIONARY
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The following
is a list terms commonly used in the interactiveTV industry. If you
find any incorrect information to be incorrect or outdated, please email
us to correct.
**Note:
There are many different kinds of interactive TV technologies and services.
The definitions below will clarify and help you differentiate between
such things as "enhanced TV", "individualized TV", "hypervideo", "NetTV",
"personal TV", and may other terms.
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PAY-PER-USE
One pays a fee for every service, product, and download often on
a tiered basis.
PERSONAL COMPUTER
(PC)
The device which enables anyone to compute, word process, or perform
more complicated functions.
PERSONAL TELEVISION (PTV)
A type of interactive television technology featuring a digital
hard disk drive inside a set-top box. Viewers can digital record
broadcast television in real-time much like a VCR, but watch instant
replays while it's recording, pause, playback, reverse and so on.
Early technology also allowed the set-tops to skip commercials at
the viewers' whim, but this is in dispute currently for obvious
political reasons. Companies leading this technology include ReplayTV,
TiVo, and others like WebTV, DirecTV who integrate hard drives in
their boxes and digital receivers.
PROTOCOL
The "language" spoken between computers to help them exchange information.
More technically, it's a formal description of message formats and
rules that two computers must follow to communicate.
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Definitions
provided by:
InteractiveTV Today 
