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VGA (Video Graphics Array) A graphics adapter that offers 16 colors at a resolution of 640 pixels by 480 pixels. To gain more colors, VGA uses an analog video signal instead of a digital signal. With the analog signal, the VGA standard is able to provide 64 distinct levels for each color, giving users 643 or 262,144 possible colors. It uses a 15-pin, three-row, female DB-type connector.
Virtual Control Program Interface (VCPI) A memory management specification that accesses extended memory for MS-DOS-based applications. It allows only one application to control extended memory and does not support multitasking. Windows is not compatible with the VCPI specification.
virtual memory Hard disk space that can be used as additional memory for holding data not immediately required by the processor.
volts The unit of electromotive force, or the potential energy, that will produce a current of 1 ampere when steadily applied against a resistance of 1 ohm. Voltage is also considered the potential energy of a circuit.
VRR (Vertical Refresh Rate) The speed at which a monitor completes all vertical traces.