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Graphics

anything on a page that is not actual text, from simple line drawings to full active images found on the WWW

Color depth

the number of bits per pixel that can be displayed on a computer screen

Pixel

grids of tiny dots

Compression

how an image is stored

Lossless

integrity is retained as the image is resized

Lossy

some pixels are lost when the image is resized

Portability

ease at which files are opened, modified, and viewed across software and browsers

Transparency

allows the background color of an image to be replaced or changed so that the graphic can blend into the background

Raster

images composed of grids of pixels that have a fixed resolution and cannot be resized without losing image quality; also called bitmap graphics

Resolution

number of pixels per inch

GIF

Graphics Interchange Format

JPEG

Joint Photographic Experts Group

BMP

Bitmap

PNG

Portable Network Graphic

TIFF

Tagged Interleave Format

Vector

images composed of mathematical formulas that define lines, nodes, and curves of digital images

Nodes

drawing points

Streaming

a constant data transmission technique for transferring large data files through the Internet

Meta graphics

a combination of both of the two basic formats (vector and raster)

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