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an electronic filing cabinet. Structured way to store info for easy retrieval


self contained lessons


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


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.


Joint Photographic Experts Group, a file format for continuous tone images such as photos or images with subtle color changes.


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.


bitmap, the extension for bitmap graphics, a bitmap is created using pixels & is considered a paint document


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.


a specific size and style of type within a type family


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


a linear unit (1/6 inch) used in printing


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.


opening; hole; adjustable opening in a camera that limits the amount of light


A small microphone that is clipped to clothing. Also called lav.


make a sweeping movement


pointing only the front of the camera vertically up or down while the dolly and tripod remain stationary


communication uses continuously varying signals corresponding to the light or sounds originated by the source


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


Moving Picture Experts Group


windows media format for video


file extension for a QuickTime movie


(computer graphics) a technique that is used to smooth jagged distortions in curves and diagonal lines so they appear smoother


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

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