Dell GX240 manual Boot Sequence, Bus Speed, Byte, Cache

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

263