Glossary
116
UTC Coordinated Universal Time. The International Atomic Time
(TAI) with leap seconds added at irregular intervals to
compensate for the Earth’s slowing rotation. Leap seconds are
used to allow UTC to closely track UT1, which is mean solar
time at the Royal Observatory, Greenwich.
V
VPN Virtual Private Network, e.g. secure communications through
the public Internet.
W
WLAN Wireless Local Area Network
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