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Glossary |
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| M |
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Matrix
switcher - A means of selecting an
input source and connecting it to one or more
outputs. Similar to a switcher, but with
multiple inputs and multiple outputs. @teqgear |
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MB -
Megabyte. A megabyte is 1,048,576 bytes. @teqgear |
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Mbps -
Megabits per second. A unit of measurement for
data transmission. @teqgear |
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Megahertz -
MHz. One million hertz (cycles per second).
@teqgear
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Milli - m.
Abbreviation for one one-thousandth. Current is
usually express as milliamps. @teqgear |
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Monitor - A
display screen used to present output from a
computer, video camera, VCR or other video
generator. @teqgear
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MPEG -
Motion Picture Experts Group. An ISO/ITU
standard for compressing digital video. @teqgear |
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MPEG-2 -
MPEG-2 provides broadcast quality video with
resolutions up to 1920x1080. It supports a
variety of audio/video formats, including legacy
TV, HDTV. Data rates range from 1.5 to 60 Mbps.
@teqgear
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MPEG-4 -
MPEG-4 is an extremely comprehensive system for
multimedia representation and distribution. A
major feature of MPEG-4 is its ability to
identify and deal with separate audio and video
objects in the frame, which allows separate
elements to be compressed more efficiently and
dealt with independently. @teqgear |
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MSA - Teq
Gear's Audio Matrix Switcher series. @teqgear |
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MSR - Teq
Gear's RGBHV Matrix Switcher series. @teqgear |
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MSQ - Teq
Gear's RGBHV with Audio Matrix Switcher series.
@teqgear
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MSV - Teq
Gear's Composite Video Matrix Switcher series.
@teqgear
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MSW - Teq
Gear's AV Matrix Switcher series. @teqgear |
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MSX - Teq
Gear's VGA Matrix Switcher series. @teqgear |
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MSY - Teq
Gear's VGA with Audio Matrix Switcher series.
@teqgear
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MTBF - Mean
Time Between Failures.The average time a
component or device works without failure.@teqgear
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N |
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Networking -
A system that transmits any combination of
voice, video and/or data between users. @teqgear |
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Noise - Any
unwanted signal. Noise can come from strong
electrical or magnetic signals in nearby lines,
from poorly fitting electrical contacts and from
power line spikes. @teqgear |
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NTSC -
National TV Standards Committee. The committee
that developed the television standards for the
U.S, which are also used in Canada, Japan, South
Korea and several Central and South American
countries. The television standard for North
America and parts of South America has 525
lines/60 Hz (60 Hz refresh), two fields per
frame and 30 frames per second. It is a color
modulation scheme. @teqgear
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O |
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Oscilloscope
- An electronic instrument that produces an
instantaneous trace on the screen of a
cathode-ray tube corresponding to oscillations
of voltage and current. @teqgear |
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Output -
Output is the energy, power, or work produced by
a system. The signal derived from any audio or
video device is also called output.. @teqgear
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P |
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PC -
Personal Computer. @teqgear |
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PCB -
Printed Circuit Board. @teqgear |
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PDF -
Portable Document Format file. The file format
in Adobe's Acrobat document exchange technology.
Acrobat/PDF is a computer file format for
publishing and distributing electronic documents
(text, image, or multimedia) with the same
layout, formatting, and font attributes as in
the original. The files can be opened and viewed
on any computer or operating system; however,
special software is required. @teqgear |
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Peak -
Highest level of signals strength. @teqgear |
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Peak-to-peak
- Difference between the maximum positive and
maximum negative values of an AC waveform. It is
Abbreviated as "p-p." @teqgear
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Peripheral device
- Normally an external device that a
CPU communicates with it. More specifically the
term is used to describe those devices that are
optional in nature. Such as a printer, mouse,
disk drive, or interface. @teqgear |
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Phase - The
relative timing of one signal to another,
usually expressed in degrees of shift. @teqgear |
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Pin out -
Pinout is a term used in electronics to describe
how an electrical connector is wired. Each pin
of the connector has a purpose which is briefly
described in the pinout. @teqgear |
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Pixel - The
smallest addressable unit on a display screen or
bitmapped image. @teqgear |
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Power
(electrical) - Energy dissipated in an
electrical or electronic circuit or device by
passing a current per unit of time. Electric
power is usually measured in Watts, kilowatts
(1,000 watts), and megawatts (1,000,000 watts).
@teqgear
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Presentation device
- A general term used to define a video
projector, plasma display, presentation monitor,
or other large format data display device. @teqgear |
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Primary colors
- All visible colors can be created
using the primary colors. In video, the primary
colors are red, green, and blue. Equal amounts
of red, green, and blue make white; the absence
of all colors makes black. @teqgear |
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Protocol - A
protocol can be defined as the rules governing
the syntax, semantics, and synchronization of
communication between two devices. @teqgear |
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PVC -
Polyvinyl chloride. It is a widely-used plastic,
used for insulation of wires. @teqgear
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