
Glossary
Watt
Glossary
65
U-Z
USB USB is a serial bus used for human interface
devices as well as low-bandwidth multimedia
devices. It is fully plug and play and hot pluggable.
Vapor seal A vapor seal is an essential part of
preventing moisture infiltration into or migration
out of a critical space, such as a data processing
center or other room that contains sensitive
electronic instrumentation. Essentially, a vapor seal
is a barrier that prevents air, moisture, and
contaminants from migrating through tiny cracks or
pores in the walls, floor, and ceiling into the critical
space. Vapor barriers may be created using plastic
film, vapor-retardant paint, vinyl wall coverings and
vinyl floor systems, in combination with careful
sealing of all openings (doors and windows) into the
room.
VGA acronym for Video Graphics Adapter
Watt A unit of electricity consumption representing
the product of amperage and voltage. When the
power requirement of a product is listed in watts,
you can convert to amps by dividing the wattage by
the voltage. (e.g., 1200 watts divided by 120 volts is
10 amps.