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Also called line frequency and expressed in kHz, it is the number of video lines written on the screen every
second (from left to right). The higher the horizontal scanning frequency, the better the resolution (i.e., the
higher the resolution and/or the higher the refresh rate).
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I
INF File
INF file (Information File)
Information (INF) files store information in a specific format. The set-up functions retrieve information from
the INF file to use when performing installation operations. Examples of the type of information stored in an
INF file include INI and registry changes, file names, and locations of the source files on source media.
Interlaced/non-interlaced
Interlaced.
The method of writing a picture on the screen by initially writing all even lines and subsequently writing all
odd lines of the picture. Result: The complete picture is composed of two interlaced half pictures (or fields).
With interlacing, a vertical (or field) frequency of 50 Hz means a picture (or frame) frequency of 25 Hz.
Non-interlaced.
The method of writing a picture on the screen by successive video lines of the picture so that a full frame is
written onto the screen in one vertical sweep of the beams. With a non-interlaced display, a vertical
frequency of 50 Hz means a picture (or frame) frequency of 50 Hz. At any given resolution, non-interlaced
modes are preferable to interlaced modes; however, generation of non-interlaced modes is more expensive.
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Glossary
file:///D|/rita/LF2/LF2/LFa1/multi_manual/english/GLOSSARY/GLOSSARY.HTM (7 of 18) [8/29/2001 2:41:21 PM]