Page 166 - DCAP104_EXPOSURE_TO_COMPUTER_DISCPLINES

Unit 7: Graphics and Multimedia

Notes
Figure 7.8: QuickTime

Apple Computer’s QuickTime software can be used to create movies with any combination
of video, audio, MIDI data, text, and animations.
Questions:
1. What is Apple Computer’s most brilliant innovations?

2. What are various uses of Apple Computer’s QuickTime software?

7.6 Summary

• Multimedia is usually recorded and played, displayed or accessed by information content
processing devices.

• Graphics software or image editing software is a program or collection of programs that
enable a person to manipulate visual image on a computer.

• Most graphics programs have the ability to import one or more graphics file formats.
• Multimedia means multicommunication.

7.7 Keywords

BMP file format: The BMP file format (Windows bitmap) handles graphics files within the
Microsoft Windows OS. Typically, BMP files are uncompressed, hence they are large; the
advantage is their simplicity and wide acceptance in Windows programs.
CGM (Computer Graphics Metafile): CGM (Computer Graphics Metafile) is a file format for 2D
vector graphics, raster graphics, and text, and is defined by ISO/IEC 8632.
Etching: Etching is an intaglio method of printmaking in which the image is incised into the
surface of a metal plate using an acid.
JPEG 2000: JPEG 2000 is a compression standard enabling both lossless and lossy storage.
Line art: Line art is a rather non-specific term sometimes used for any image that consists of
distinct straight and curved lines placed against a (usually plain) background, without gradations
in shade (darkness) or hue (color) to represent two-dimensional or three-dimensional objects.
Line art is usually monochromatic, although lines may be of different colors.

Metafile formats: Metafile formats are portable formats which can include both raster and vector
information.

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