Dell GX240 User's Guide - Page 275

Boot Sequence Allows you to specify the order of the devices from which the system attempts to boot. bps Bits per second. A measurement of data transmission speed. Bps Bytes per second. A measurement of data transmission speed. BTU British Thermal Unit. A measurement of thermal energy that equals approximately 1055 joules (or 1055 watt-seconds), or the amount of thermal energy necessary to raise the temperature of one pound of pure liquid water by one degree F at the temperature at which water has its greatest density (39 °F). Bus An electronic pathway that links computer components such as the microprocessor, RAM, expansion cards, and so on. The "width" of a bus indicates the amount of data that can move along the bus and is determined by the number of parallel conductors in the bus. For example, a 32-bit bus has 32 conductors and can move 32 bits of data at once. Bus Speed The speed, given in MHz, that indicates how fast a bus can transfer information. For example, PCI bus speeds are 33 or 66 MHz, and the AGP bus speed is 66 MHz. Intel Pentium® microprocessors have bus speeds of 66 or 100 MHz. The microprocessor operating speed is determined by a combination of the bus speed and multiplier; for example, 100 MHz bus speed x 4.5 multiplier = 450 MHz microprocessor speed. Byte A measurement of data storage that equals eight contiguous bits of information. C Celsius. A measurement of temperature that equals the conversion formula (Tf - 32) * (5 / 9), where Tf equals temperature in F. Cache An area of high-speed RAM set aside to store frequently accessed data. When data is accessed, a copy is stored in cache memory. The next time the microprocessor looks for information, it first checks the cache. If the data is 23