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ab ch6

Advanced Configuration and Power Interface (ACPI) specification developed by intel, compaq, phoenix, microsoft, and toshiba to control power on computers and other devices.
back-side bus (BSB) the portion of a processor's internal bus that connects the processor to the internal memory cache.
case fan a fan inside a computer case used to draw air out of or into the case
Centrino a technology used by intel whereby the processor, chipset, and wireless network adapter are all interconnected as unit which improves laptop performance.
chassis air guide (CAG) a round air duct that helps to pull and direct fresh air from outside a computer case to the cooler and processor.
Cool’n’Quiet a feature of AMD processors that lowers power requirements and helps keep a system quiet
Cooler a combination cooling fan and heat sink mounted on the top or side of a processor to keep it cool
DRAM the most common type of system memory, it requires refreshing every few milliseconds
dual-core processing a processor package that contains two core processors, thus supporting four instructions at once.
Enhanced Intel SpeedStep Technology (EIST) a processor feature used by intel that steps down processor frequency when the processor is idle to conserve power and lower heat.
Execute disable bit a processor security feature by intel that prevents software from executing or reproducing itself if it appears to be malicious.
front-side bus (FSB) the bus between the CPU and memory on the motherboard
heat sink a piece of metal, with cooling fins, that can be attached to or mounted on an integrated chip to dissipate heat
hyper-threading the intel technology that allows each logical processor within the processor package to handle an individual thread in parallel with other threads being handled by other processors within the package
hyper transport the AMD technology that allows each logical processor within the processor package to handle an individual thread in parallel with other threads being handled by other processors within the package
internal bus the bus inside the CPU that is used for communication between the CPU's internal components
Level 1 (L1) cache memory on the processor die
Level 2 (L2) cache memory in processor package, but not on the die
Level 3 (L3) cache use a third cache farther from the processor core, but still in processor package
liquid cooling system a small pump inside the case and tubes move water or other liquid around components and then away from them to a place where fans can cool the liquid
memory cache RAM that holds data and instructions that the memory controller anticipates the processor will need next
MMX (Multimedia Extensions) first technology to support repetitive looping
multi-core processing processor contains two or more cores that operate at the same frequency, but independently of each other.
multiplier the factor by which the bus speed or frequency is multiplied to get the CPU clock speed
multiprocessor a system that contains more than one processor. the motherboard has more than one processor socket and the processors must be rated to work in this multi-processor environment.
octo a processor package that contains eight cores and supports 16 instructions at once
overclocking running a processor at a higher frequency than recommended by the manufacturer
PowerNow! an AMD technology that increases performance and lowers power requirements for processors
processor frequency the frequency at which the CPU operates. Usually expressed in GHz
quad core a processor package that contains four cores and supports eight instructions at once
S1 state the ACPI power saving mode where the hard drive and monitor are turned off and everything else runs normally
S2 state the ACPI power saving mode where the hard drive, monitor, and processor are turned off
S3 state the ACPI power saving mode where everything is shut down except RAM and enough of the system to respond to a wake-up call such as pressing the keyboard. Also called sleep mode or standby
static RAM (SRAM) RAM chips that retain information without the need for refreshing, as long as the computer's power is on.
stop errors An error at the kernel level that is severe enough to cause the operating system to stop all processes.
thermal compound A creamlike substance that is placed between the bottom of the cooler heatsink and the top of the processor to eliminate air pockets and to help to draw heat off the processor
triple core A processor package that contains three core processors, thus supporting six instructions at once
Created by: abrophy11