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Dell PowerEdge C1100 User Manual

Page 127

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Glossary

127

flash memory — A type of electronic chip that can be programmed and

reprogrammed using a software utility.
FSB — Front-side bus. The FSB is the data path and physical interface between the

processor and the main memory (RAM).
FTP — File transfer protocol.
g — Gram(s).
G — Gravities.
Gb — Gigabit(s); 1024 megabits or 1,073,741,824 bits.
GB — Gigabyte(s); 1024 megabytes or 1,073,741,824 bytes. However, when referring

to hard-drive capacity, the term is usually rounded to 1,000,000,000 bytes.
graphics mode — A video mode that can be defined as x

horizontal by y vertical pixels

by z colors.
host adapter — A controller that implements communication between the system’s

bus and the peripheral device, typically a storage device.
hot-plug — The ability to insert or install a device, typically a hard drive or an internal

cooling fan, into the host system while the system is powered on and running.
Hz — Hertz.
I/O — Input/output. A keyboard is an input device, and a monitor is an output device.

In general, I/O activity can be differentiated from computational activity.
IDE — Integrated drive electronics. A standard interface between the system board

and storage devices.
iDRAC — Internet Dell Remote Access Controller. A remote access controller that

uses the Internet SCSI protocol.
IP — Internet Protocol.
IPMB — Intelligent Platform Management Bus. An interconnect between different

boards within a chassis.
IPv6 — Internet Protocol version 6.
IPX — Internet package exchange.
IRQ — Interrupt request. A signal that data is about to be sent to or received by a

peripheral device travels by an IRQ line to the processor. Each peripheral connection

must be assigned an IRQ number. Two devices can share the same IRQ assignment,

but you cannot operate both devices simultaneously.
iSCSI — Internet SCSI (see SCSI). A protocol that enables SCSI device

communication across a network or the Internet.
jumper — Small blocks on a circuit board with two or more pins emerging from them.

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