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Ethernet - Ethernet (this name comes from the physical concept of ether) is a frame-based computer networking technology for local area networks (LANs). It defines wiring and signaling for the physical layer, an. Used . d frame formats and protocols for the media access control (MAC)/data link layer of the OSI model. Ethernet is mostly standardized as IEEEs 802.3. It has become the most widespread LAN techno. Used . logy in use during the 1990s to the present, and has largely replaced all other LAN standards such as token ring, FDDI, and ARCNET. ...

Zone System - A unique method introduced by photographers Ansel Adams and Fred Archer around 1940 for determining the best exposure and correct development for an individual photograph by way of analysiing the subj. Used . ects luminosities in terms of ten gray tones or “zones” labled 0 to IX or zero to nine and visualizing them as print densities. The zone system gives photographers a systematic method for ac. Used . curately identifing the relationship between the way they see the photographic subject and the results they achieve in their finished works....

Limelight - An early type of stage light in which an intense illumination is created when an oxyhydrogen flame is directed at a cylinder of lime, also called calcium oxide, which can be raised to white incandesce. Used . nce heat without melting to producing brilliant illumination. The limelight effect was discovered early in the nineteenth century by Goldsworthy Gurney. A Scottish engineer, Thomas Drummond. Used . , realized that the light would be useful for surveying and built a working version in 1826. Therefore, the light is sometimes known as the Drummond Light. The Limelights first theatrical use was in 1837 at ...

Drivers and Horns - Drivers and Horns are speakers designed to produce high frequency audio usually around 3-5 kHz and up to 20 kHz. Horns are usually in the shape of a long corn and look somewhat like the horn of a mus. Used . ical instrument. . Used . ...

Compression and Dynamics - Compression is the reduction of the dynamic range of a sound to avoid unintentional changes and increases in the amplitude. Compression is generally used to make an audio signal sound louder without i. Used . ncreasing its peak amplitude. By compressing or limiting the peak signals, it becomes possible to increase the overall volume of the signal without exceeding the dynamic limits of a device or. Used . medium. This causes quiet sounds to become louder, while louder sounds remain unchanged....