dual-ring topology
A network topology in which two concentric rings connect each node on a network instead of one network ring that is used in a ring topology. Typically, the secondary ring in a dual-ring topology is redundant. It is used as a backup in case the primary ring fails. In these configurations, data moves in opposite directions around the rings. Each ring is independent of the other until the primary ring fails and the two rings are connected to continue the flow of data traffic.
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A type of passive-matrix LCD display that provides faster refresh rates that conventional passive-matrix displays by dividing the screen into two sections that are refreshed simultaneously. Dual-scan displays are not as sharp or bright as active-matrix displays, but they consume less power.
- dub
(1) A duplicate copy of an original videotape or disc. (2) In video production, dubbing is the process of recording or rerecording voices over the originals.
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A display monitor that has no processing capabilities. A dumb terminal is simply an output device that accepts data from the CPU. In contrast, a smart terminal is a monitor that has its own processor for special features, such as bold and blinking characters. Dumb terminals are not as fast as smart terminals, and they […]
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A placeholder. A dummy variable , for example, is a variable that doesn’t contain any useful data, but it does reserve space that a real variable will use later.
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(n) The act of copying raw data from one place to another with little or no formatting for readability. Usually, dump refers to copying data from main memory to a display screen or a printer. Dumps are useful for diagnosing bugs. After a program fails, you can study the dump and analyze the contents of […]