In a facsimile recorder, the spot that is used to generate the recorded copy on the record medium.

In a database management system, the procedures and capabilities available for reconstruction of the contents of a database to a state that prevailed before the detection of processing errors and before the occurrence of a hardware or software failure that resulted in the destruction of some or all of the stored data.

1. [The] action[s] necessary to restore data files of an information system (IS) and computational capability after a system failure. [INFOSEC-99].
2. In data communications, a process whereby a data station attempts to resolve conflicting or erroneous conditions arising during the transfer of data.

[The] designation applied to information systems, and associated areas, circuits, components, and equipment in which national security information is being processed. [INFOSEC-99]

1. [A] Telecommunications or automated information system signal that would divulge classified information if recovered and analyzed. [NIS]
2. In cryptographic systems, a signal containing classified information that has NOT been encrypted.
3. Any electronic emission (e.g., plain text, key, key stream, subkey stream, initial fill, or control signal) that would divulge national security information if recovered. [INFOSEC-99]

[The] Separation of electrical and electronic circuits, components, equipment, and systems that handle national security information (RED), in electrical form, from those that handle non-national security information (BLACK) in the same form. [INFOSEC-99]

A set of digits and related indicators (type of number, numbering plan identification, screening indicator, presentation indicator) that provide numbering information related to the redirecting party. [T1.625-1993]

A system profile construction method of starting at a base platform and adding new services by allowing a service component to ask the base platform to redirect all requests for that type of service to the service component [POSIX.0].

A single-sideband emission in which the degree of carrier suppression enables the carrier to be reconstituted and to be used for demodulation. [NTIA] [RR]

A form of amplitude-modulation in which the carrier is transmitted at a controlled level below that which is required for demodulation, but at a level sufficient to serve as a frequency reference.