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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find any incorrect information to be incorrect or outdated, please email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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INDIVIDUALIZED
TELEVISION
A type of interactive television technology invented by a company
in New York , NY called ACTV. This technology allows viewers to
control camera angles during live events, select which commercials
they want to watch, and generally control a selection of choices
content producers provide as part of the broadcast. Ecommerce and
interaction with those commercials is possible. In the backend,
ACTV's servers collect choice information and offer viewers further
selections based on those choices.
INTERFACE
A set of textual or graphical symbols that allow a computer user
to communicate to underlying software. Computer Interfaces work
in many ways. Some are text-based and communicate only in letters,
numbers, and other keyboard symbols. Others are graphical and require
the use of a mouse. Still others are touchscreen.
INTERLACED SCANNING
The rectangular area of the TV screen is scanned by an electronic
beam (raster) as it is deflected horizontally and vertically and
creates an interlaced video display we see as the TV picture. Referred
to as interlaced scanning because the raster skips every second
line on the first pass and then fills in those lines on a second
pass. The interlaced scanning system may result in a screen flicker.
INTERNET PROTOCOL (IP)
A protocol telling the network how packets are addressed and routed.
INTERNET SERVICE PROVIDER (ISP)
Telecommunications companies that sell Internet access. Users either
dial-up to an ISP server or have a broadband connection such as
DSL. Once connected, they can branch out onto the Web.
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Definitions
provided by:
InteractiveTV Today 
