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C |
| Cable modem: |
A device that allows an Internet connection via
a cable TV line to provide high-speed Internet access
through a cable television network. Speeds can top
1 Mbps. Cable modems are typically external devices
that are placed next to your computer and connected
via an Ethernet cable. |
| Capture: |
Process of digitizing audio and video content
from an analog format. |
| CDMA: |
Code Division Multiple Access - CDMA is a "spread
spectrum" technology. This means that it spreads
the information contained in a particular signal
over a much greater bandwidth than the original
signal. When implemented in a cellular telephone
system, CDMA technology offers numerous benefits
to the cellular operators. |
| CDMA2000 1x: |
CDMA2000 is synonymous with 3G pertaining to wireless
networks. 1x is the first phrase of implementation
of a 3G CDMA based cellular network and offers about
twice the capacity of current exsisting 2G networks,
with data transfer rates of 144kps. CDMA2000 1x
is backwards compatible with exsisting CDMA networks,
and sends and receives data in packets. It allows
the data channel to be allocated to other users
if there is no data being transmitted, and therefore
makes the network more efficient. |
| CDN: |
Content Delivery Network - Companies that deliver
Web data (including streaming media) via an intelligent
distributed network. For companies providing streaming
content delivery services, this means that audio
or video streams will be delivered more reliably,
with less buffering and time outs. Generally, this
will provide a better overall experience for the
end user. |
| Circuit Switching: |
A communications technology in which a dedicated
channel (or circuit) is established for the duration
of a transmission. The most common circuit-switching
network is the telephone system, which links together
wire segments to create a single unbroken line for
each telephone call. Circuit-switching is ideal
when data must be transmitted quickly and must arrive
in the same order in which it's sent, for example
live audio and video. |
| Coaxial Cable: |
Copper cable that consists of a central wire
surrounded by insulation and then a grounded shield
of braided wire. Coaxial wire is widely used by
the cable television and computer industries. It
is less prone to interference than regular wire
cables. |
| Codec: |
(compression-decompression) – Standard method
of compressing and decompressing data, typically
done with audio/video files where data is encoded
or compressed to reduce file size. A codec allows
an operating system or a program to properly play
audio or video in a particular format. Codecs can
use software-only or hardware-assisted schemes. |
| Compression: |
The reduction in the size of data in order to
save space or transmission time. Compression is
performed by a program which uses an algorithm or
formula to determine how best to compress and decompress
the data. |
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