In the transmission or recording of raster-scanned analog television signals, an artifact manifested as a weak, ghost-like secondary image, offset (in the direction of the scan) with respect to the position of the primary image.
Note: Ghosting is probably most familiar as a consequence of multipath rf reception of a broadcast television signal. The slight delay in the arrival time… (Read More →)

See ghost.

(or . gif) Abbreviation for graphical interchange format. A file-name extension indicating a certain digital image file format suitable for efficiently importing image data into computer files or for transmitting or displaying the formatted image on a computer monitor or printing it out.

Global Informaion Grid

A billion, i.e., 109, floating point operations per second.

A unit of frequency denoting 109 Hz.

Abbreviation for global information infrastructure. The totality of worldwide infrastructure elements that combine the three industry sectors of (a) telecommunications, (b) computer (information) technology, and (c) consumer electronics to extend the capabilities of the NII (national information infrastructure) worldwide. [After ISO/IEC N1957]

Deprecated synonym for call collision. See also dual seizure.

The Signaling System No.7 (SS7) switch designated as control switch for circuits in the both-way circuit group. For the same circuits, the other switch is referred to as the slave. On detecting glare, the control switch proceeds to complete the call for which it has already sent an initial address message (IAM). The IAM received from the slave is discarded.… (Read More →)

1. In the strict sense, a state of matter. [FAA]
2. In fiber-optic communication, any of a number of noncrystalline, amorphous inorganic substances, formed, by heating, from metallic or semiconductor oxides or halides, and used as the material for fibers.
Note: The most common glasses are based on silicon dioxide (SiO2). [After FAA]