This vector (0:0074) is a pointer to a bunch of video parameters that
are used by INT 10H to set the video controller registers and some
BIOS Data Area values when the video mode is initialized.

It is possible to create a RAM-resident version of this table, and modify
parameters in order to change the way some screen modes work.  For
instance, that is how the DOS Mode command shifts the screen left or

See Video Initialization Table for a layout of the table.

See Also: BIOS Data Area
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INT 1dH: Video Initialization Table Pointer