Microwave

A type of radio transmission used to transmit information.


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A technology that uses electromagnetic or electrostatic coupling in the radio frequency (RF) portion of the electromagnetic spectrum to identify a specific device. Each RFID tag includes a unique identifier, so that when a nearby antenna/transceiver actives the tag, it transmits that identifier back to the antenna where that value is recorded or used to trigger some kind of action. For example, most modern toll-road systems use RFID devices that drivers attach to the windshield of their car, and each time a device is “read” by an antenna, the vehicle owner’s toll balance is incremented by the cost of that transit. RFID devices may also be used to track individuals (carrying tags), equipment (bearing tags), and so forth, within the premises of an enterprise for security monitoring.
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A collection of 24 earthorbiting satellites that continuously transmit radio signals to determine an object or target’s current longitude, latitude, speed, and direction of movement.
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There are three parts to systems security: (1) Computer Security (COMPUSec) is composed of measures and controls that protect an AIS against denialofservice, unauthorized disclosure, modification, or destruction of AIS and data (information). (2) Communications Security (COMSec) is measures and controls taken to deny unauthorized persons information derived from telecommunications of the U. S. government. Government communications regularly travel by computer networks, telephone systems, and radio calls. (3) Information Systems Security (INFOSec) is controls and measures taken to protect telecommunications systems, automated information systems, and the information they process, transmit, and store.
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Any transmission, emission, or reception of signs, signals, writing, images, sounds, or other information by wire, radio, visual, satellite, or electromagnetic systems. Preparation, transmission, communication, or related processing of information (writing, images, sounds, or other data) by electrical, electromagnetic, electromechanical, electrooptical, or electronic means.
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In local networking, the time (measured in bits at the transmission rate) for a signal to propagate around or throughput the network. The time taken by a DASD device to position a storage location to reach the read arm over the physical storage medium. For general purposes, average latency time is used. Delay between the time a device requests access to a network and the time it is granted permission to transmit.
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