Operation Manual

326 Pinnacle Studio 9
by shading the edges with pixels intermediate in color
between the edge and the background, making the
transition less apparent. Another method of anti-
aliasing involves using higher resolution output devices.
Aspect ratio: The ratio of width to height in an image
or graphic. Keeping the aspect ratio fixed means that
any change to one value is immediately reflected in the
other.
AVI: Audio Video Interleaved, a standard format for
digital video (and  Video for Windows).
Batch capture: An automated process that uses an
 edit decision list to locate and recapture specific
clips from a videotape, usually at a higher data rate
than the clip was originally captured.
BIOS: Acronym for Basic Input Output System, which
refers to basic input and output commands saved in a
 ROM, PROM or  EPROM. The essential task of
the BIOS is the control of input and output. When the
system is started, the ROM-BIOS carries out some tests.
 Parallel port, IRQ, I/O
Bit: Abbreviation of “BInary digiT”, the smallest
element of a computer’s memory. Among other things,
bits are used to store the color values of pixels in an
image. The more bits used for each  pixel, the
greater the number of available colors. For example:
1-bit: each pixel is either black or white.
4-bit: allows 16 colors or gray shades.
8-bit: allows 256 colors or gray shades.
16-bit: allows 65,536 colors.
24-bit: allows about 16.7 million colors.