In telephony, the transmission of address information to a switching office by means of pulses, i.e., signals, that originate from the subscriber, i.e., user, equipment.
Note: Examples of pulsing methods are dual-tone multifrequency (DTMF) signaling, in which a unique pair of audio frequencies represents each of the respective numerals or other characters on a keypad, and rotary dialing, in which… (Read More →)

The frequency of an oscillator used to provide sustaining power to a device, such as a laser or parametric amplifier, that requires rf or optical power.

The action of an oscillator that provides cyclic inputs to an oscillating reaction device.
Note: Examples of pumping are the action that results in amplification of a signal by a parametric amplifier, and the action that provides a laser or maser with an input signal at the appropriate frequency to sustain stimulated emission.

See binary notation.

The erasure of data from a system or component using conventional techniques (e. g. overwriting) [CESG]. See also: Object Reuse, Remanence.

Rendering stored information unrecoverable by laboratory attack. [INFOSEC-99]

1. In electronic marketing, to send data to another computer without a direct request from (via) that computer. [After Bahorsky]
2. In networking, to send data from a server to a client in compliance with a previous request from (via) the client, as soon as the data are available. [After 2382-pt.35]

See last-in first-out.

In telephone or two-way radio systems, that method of communication over a speech circuit in which the talker is required to keep a switch operated while talking.
Note: In two-way radio, push-to-talk operation must be used when the same frequency is employed by both transmitters. For use in noisy environments, or for privacy, some telephone handsets have push-to-talk switches that… (Read More →)

In telegraph or data transmission systems, that method of communication in which the operator at a station must keep a switch operated in order to send messages.
Note 1: Push-to-type operation is used in radio systems where the same frequency is employed for transmission and reception.
Note 2: Push-to-type operation is a derivative form of transmission and may be used… (Read More →)