Toshiba Tecra 8100 - Manual (Page 185)

User's Manual Display Controller and Modes E-1
Version
1
Last Saved on 10/12/99 02:16
Tecra 8100 User's Manual – 8100_UK.DOC – ENGLISH – Printed on 13/12/99 as IM8100UK
Appendix E
Display Controller and Modes
Display controller
The display controller interprets software commands into hardware
commands that turn particular pels on or off.
The controller is an advanced Video Graphics Array (VGA) that provides
Super VGA (SVGA) and Extended Graphics Array (XGA) support for the
internal LCD and external monitors.
Two models are available:
„ 13.3" XGA, 1024 horizontal x 768 vertical pixels
„ 14.1" XGA, 1024 horizontal x 768 vertical pixels
Because of the LCD’s increased resolution, lines may appear broken in
DOS mode.
A high-resolution external monitor connected to the computer can display
up to 1280 horizontal and 1024 vertical pixels at up to 256 colors or 1024
horizontal and 768 vertical pixels at up to 16M colors.
The display controller also controls the video mode, which uses industry
standard rules to govern the screen resolution and the maximum number
of colors that can be displayed on screen.
Software written for a given video mode will run on any computer that
supports the mode.
The computer’s display controller supports all VGA and SVGA modes, the
most widely used industry standards.
Video modes
The computer supports the video modes defined in table 1. If your
application offers a selection of mode numbers that do not match the
numbers on the table, select a mode based on mode type, resolution,
character matrix, number of colors and refresh rates. Also, consider that if
your software supports both graphics and text modes, the screen display
may appear to operate faster using a text mode.