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Appendix 2
Glossary
ACPI
(
A
dvanced
C
onfiguration and
P
ower
I
nterface) is a power management
specification that allows the operating system to control the amount of power
distributed to the computers devices. Devices not in use can be turned off,
reducing unnecessary power expenditure.
AGP
(
A
ccelerated
G
raphics
P
ort) is a PCI-based interface which was designed
specifically for demands of 3D graphics applications. The 32-bit AGP channel
directly links the graphics controller to the main memory. While the channel
runs at only 66MHz, it supports data transmission during both the rising and
falling ends of the clock cycle, yielding an effective speed of 133MHz.
AT
boards are generally smaller and cheaper.
ATAPI
(
AT A
ttachment
P
acket
I
nterface), also known as IDE or ATA, is a drive
implementation that includes the disk controller on the device itself. It allows
CD-ROMs and tape drives to be configured as master or slave devices, just
like hard drives.
ATX
boards are generally larger and more expensive because they have the
keyboard, mouse, serial, USB, and parallel ports built in.
Bandwidth
refers to carrying capacity. The greater the bandwidth, the more
data the bus, phone line, or other electrical path, can carry. Greater bandwidth,
Appendix
1
Glossary
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