Information that has been determined, pursuant to Executive Order 12958 or any predecessor order, to require protection against unauthorized disclosure. [INFOSEC-99]

Any telecommunications or information system operated by the United States Government, the function, operation, or use of which: (a) involves intelligence activities; (b) involves cryptologic activities related to national security; (c) involves command and control of military forces; (d) involves equipment that is an integral part of a weapon or weapon system; or (e) is critical to the direct fulfillment… (Read More →)

See NTSC standard.

Of an antenna, the lowest frequency at which the antenna resonates without the addition of any inductance or capacitance.

A unit of distance used in navigation and based on the length of one minute of arc taken along a great circle.
Note 1: Because the Earth is not a perfect sphere, various values have been assigned to the nautical mile. The value 1852 meters (607
6. 1 ft. ) has been adopted internationally.
Note 2: The nautical mile is… (Read More →)

To move around (a) within a series of Web pages, or (b) among different Web pages, by following hyperlinked paths within each document. Synonyms browsing, surfing [slang].

Synonym droid.

Synonym droid.

Abbreviation for network busy hour. See busy hour.

Abbreviation for narrowband radio voice frequency.