- amplitude modulation - method of using radio waves by adjusting the amplitude or size of a wave
analog signal
- radio waves containing both the picture and sound of a TV program; in an analog television broadcast, the brightness, colors and sound are represented by rapid variations in the amplitude, frequency or phase of the signal.
antenna
- (plural - antennas) equipment for receiving radio waves
B
broadcasting company
- a business that sends out signals using radio waves to entertain and provide information
C
cathode ray tube
- (CRT) equipment that focuses a beam of light onto a phosphor screen
channel
- frequency on which a television station airs programming
commercial
- having to do with business - also an advertisement
D
data
- facts and information
dialogue
- speaking and talking
digital signal
- TV signals encoded in a numeric series composed of 0’s and 1’s
direct line
- without interruption or interference - a straight distance between objects
E
electromagnetic spectrum
- the range of all visible and invisible light waves
electron
- a negatively charged particle of electricity
F
fluid
- smooth, without breaks
FM
- frequency modulation - method of using radio waves by adjusting the frequency or number of waves per measurement of time
Foley artist
- an artist that creates sound effects for motion
G
geostationary orbit
- an orbit that keeps up with the turning of the earth so that it stays directly over the same location
I
industry
- business activity
intensity
- strength
L
LCD technology
- “liquid crystal display” – a display where millions of pixels are switched on or off to make a picture, with liquid crystals acting as microscopic light switches
luxury
- generally not a necessity
M
magnetic field
- a field around a magnet and its influence
mechanical vibrations
- continuous shaking with predictable frequency
migration
- seasonal movement of animals
mobile
- capable of being moved
N
neon
- a gas that glows when exposed to electrons
networks
- a complex facility for broadcasting television
O
OLED technology
- “organic light-emitting diodes” – bright light is produced by organic, carbon-based molecules and emitted by millions of pixels when an electrical current is switched on
optical illusion
- an image that deceives reality
P
phosphor
- any substance that, when exposed to electricity or other form of radiation, gives off a visible light
pixels
- the smallest part of an image
plasma television
- a flat screen that works using a plasma gas such as xenon or neon
potential
- capable of becoming
primitive
- simple - early in the development phase
production
- creation
programming
- the selected television shows offered by a TV station
R
raster scan
- the horizontal and vertical pattern made by a CRT gun which scans across and from top to bottom of a screen and then back again
refreshes
- to make new or make over again
remote control
- a handheld device that can control actions of another device
S
satellite
- man-made equipment that orbits a planet to perform a function
signals
- commands
simulate
- make it look like
sound effects
- sounds created for motion pictures
T
television
- a receiving device that allows the user to see and hear broadcast signals
transmitted
- sent out
transmitter
- a device which sends out signals
V
vacuum
- space void of matter, especially air
video conferencing
- the ability to have a meeting with people at multiple locations using a screen for viewing
videotape
- (noun) a magnetic tape that allows for storing and copying visual actions; (verb) the act of creating these copies - filming
W
wavelength
- the distance from the crest of one wave to the crest of the next wave
