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Technology Applications TExES

STUDY
PLAY
database
an electronic filing cabinet. Structured way to store info for easy retrieval
tutorials
self contained lessons
simulations
computerized, interactive model of a system. Can make risky or expensive experiments safe and affordable.
Intergrated Learning System (ILS)
holds all the content for a particular subject, year or grade level. Tracks student progress
Pixel
The term "pixel" is actually short for "Picture Element." These small little dots are what make up the images on computer displays, whether they are flatscreen (LCD) or tube (CRT) monitors. The screen is divided up into a matrix of thousands or even millions of pixels.
jpg
Joint Photographic Experts Group, a file format for continuous tone images such as photos or images with subtle color changes.
gif
stands for graphics interchange format. It also includes data compression, but because it is limited to 256 colors, it is more effective for scanned images such as illustrations rather than color photos.
bmp
bitmap, the extension for bitmap graphics, a bitmap is created using pixels & is considered a paint document
png
Portable Network Graphic. Designed as a replacement for the older GIF file format commonly used on web pages. A higher quality image.
golden section
A traditional proportional system for visual harmony expressed when a line or area is divided into two sections so that the smaller part is to the larger as the larger is to the whole.
rule of thirds
a composition rule that divides the screen into thirds horizontally and vertically, like a tic-tac toe grid placed over the picture on a television set. Almost all of the important information included in every shot is located at one of the four intersections of the horizontal and vertical lines
linear perspective
parallel lines, such as railroad tracks, appear to converge with distance. The more the lines converge, the greater the perceived distance
atmospheric perspective
creates the illusion of distance by the greater diminution of color intensity, the shift in color toward almost neutral blue, and the blurring of contours as the intended distance between the eye and object increases
Additive color
Color created by superimposing light rays. Superimposing the three primary color lights-red, blue, and green-produces white. The secondaries are cyan, yellow, and magenta. (RGB)
subtractive color
the method of producing color through removing certain light waves made of three primary colors plus black for display on a printed page. (Referred to as CYMK: Cyan (a blue-green)/Yellow/Magenta/Black) CYMK uses an opaque surface (not a lighted surface)
color wheel
a chart in which complementary colors (or their names) are arranged on opposite sides of a circle
primary colors
Red, Yellow, Blue
secondary colors
Hues produced by combining two primary colors (red and yellow to form orange)
complementary colors
colors located directly opposite one another on the color wheel
split complement
a color and the two colors on either side of its complement
analogous color
colors that are side by side on the color wheel and share a hue
monochromatic color
Different tints, shades, and intensities of a single color.
typeface
a specific size and style of type within a type family
serif
a short line at the end of the main strokes of a character
sans serif
type in which letters have no feet, or curves, at the ends of the main strokes
pica
a linear unit (1/6 inch) used in printing
kern
adjusting space between 2 letters for a specific reason
bitmap graphic
Also known as raster graphics, consist of grids of tiny dots called pixels. Each pixel is assigned a color. Pixelation can occur when images are enlarged.
vector graphics
composed of mathematical formulas that define lines, shapes and curves. (EPS and PICT files). Files are quite small. Not appropriate for photographs.
object oriented programming
A programming paradigm that uses "objects" and their interactions to design applications and computer programs.
aperture
opening; hole; adjustable opening in a camera that limits the amount of light
lavaliere
A small microphone that is clipped to clothing. Also called lav.
pan
make a sweeping movement
tilt
pointing only the front of the camera vertically up or down while the dolly and tripod remain stationary
analog
communication uses continuously varying signals corresponding to the light or sounds originated by the source
codec
Program/device that COmpresses and DECompresses digital video. Cinepak, Indeo (Intel), and RealVideo are examples of CODEC's.
color temperature
the relative blueness or redness of white light, measured in Kelvin degrees. Bluish light has high color temperature; reddish light has a low one.
depth of field
the measurement of the area in front of and behind the subject that is in focus
MPEG
Moving Picture Experts Group
AVI
windows media format for video
MOV
file extension for a QuickTime movie
anti-aliasing
(computer graphics) a technique that is used to smooth jagged distortions in curves and diagonal lines so they appear smoother
HTTP
Hyper Text Transfer Protocol
lossless compression scheme
means that a graphic file losses no data when it is compressed
lossy compression scheme
removes data from a graphic file so the file is significantly smaller and downloads more quickly in a web browser