Write two different modes of video services of BIOS? Differentiate between both modes?
Video services are classified into two broad categories; graphics mode services and text mode services. In
graphics mode a location in video memory corresponds to a dot on the screen. In text mode this relation is not straightforward. The video memory holds the ASCII of the character to be shown and the actual shape is read from a font definition stored elsewhere in memory.
graphics mode a location in video memory corresponds to a dot on the screen. In text mode this relation is not straightforward. The video memory holds the ASCII of the character to be shown and the actual shape is read from a font definition stored elsewhere in memory.
What are two Video Services of BIOS
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Reviewed by MCH
on
December 25, 2012
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