Appendix C

Video Monitor Systems

There are many video display systems available for use with your computer system. This appendix will provide a brief description of the most common video system types, and discuss their applications.

Monitor System Resolution

The main difference between video monitor system types is their screen resolution. The monitor’s resolution is important because it determines the number of characters that can be displayed on the screen at any one time, and the quality of any screen graphics displayed.

The image displayed on the video screen is made up of a large number of individual dots. This is true whether the displayed screen image is made up of text or graphics, or is a mixture of both. The higher the monitor’s resolution is, the smaller the individual dots can be. Smaller dots means that more of them can be displayed in the same space. If more dots are displayed, then more text characters and better looking graphics can be displayed.

Video Controller Boards

The video controller board controls the actual number of dots sent to the screen. A video system’s resolution capability is usually described as the number of dots that can be displayed horizontally by the number of dots that can be displayed vertically.

Video Monitor Systems

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