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Glossary
TABLE G-1. Acronyms or Terminology.
Acronym or
Word Acronym Description Definition
ATA Advanced Technology Attachment A standard interface for connecting a computer’s
storage devices, such as CD-ROMs and hard-drives.
BIOS Basic Input/Output System Built-in software routines, stored in ROM, that
contain the code for controlling the keyboard, monitor,
disk drives, serial communications, etc.
channel A link that transports data point-to-point.
concatenation The process of connecting entities end-to-end on a
single communications channel.
CPU Central Processing Unit The computational segment of a computer.
DMA Direct Memory Access A method of transferring data from a storage device
to RAM without using CPU resources.
HBA Host Bus Adaptor An adaptor card that includes the I/O logic, software
and processing to manage the transfer ofthat infor-
mation between the host system and devices con-
nected to it.
HDT HD Turbo A mode that uses the highest data rate portions of the
disk drives for maximum throughput until the disk is
full, but with a tradeoff in total data capacity of the
disk from 40% to 80%,depending on the RAID level.
IDE Integrated Drive Electronics Most commonly used data bus for PC’s.
LED Light Emitting Diode An electronic device that illuminates when powered.
Linux Free, open-source UNIX-based operating system.