Dell PowerEdge 1750 User Manual

Page 25

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Abbreviation for Internetwork Packet EXchange.

IRQ

 

Abbreviation for 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 microprocessor.

Each peripheral connection must be assigned an IRQ number. For example, the first serial port in your system (COM1) is assigned to IRQ4 by default. Two
devices can share the same IRQ assignment, but you cannot operate both devices simultaneously.

ITE

 

Abbreviation for information technology equipment.

jumper

 

Jumpers are small blocks on a circuit board with two or more pins emerging from them. Plastic plugs containing a wire fit down over the pins. The wire

connects the pins and creates a circuit. Jumpers provide a simple and reversible method of changing the circuitry in a printed circuit board.

K

 

Abbreviation for kilo-, indicating 1,000.

KB

 

Abbreviation for kilobyte(s), 1,024 bytes.

KB/sec

 

Abbreviation for kilobyte(s) per second.

Kbit(s)

 

Abbreviation for kilobit(s), 1,024 bits.

Kbit(s)/sec

 

Abbreviation for kilobit(s) per second.

key combination

 

A command requiring you to press multiple keys at the same time. For example, you can reboot your system by pressing the <Ctrl><Alt><Del> key

combination.

kg

 

Abbreviation for kilogram(s), 1,000 grams.

kHz

 

Abbreviation for kilohertz, 1,000 hertz.

LAN

 

Acronym for local area network. A LAN system is usually confined to the same building or a few nearby buildings, with all equipment linked by wiring dedicated

specifically to the LAN.

lb

 

Abbreviation for pound(s).

LED

 

Abbreviation for light-emitting diode. An electronic device that lights up when a current is passed through it.

Linux

 

A version of UNIX® that runs on a variety of hardware systems. Linux is open source software, which is freely available; however, the full distribution of Linux

along with technical support and training are available for a fee from vendors such as Red Hat Software (www.redhat.com).

local bus

 

On a system with local-bus expansion capability, certain peripheral devices (such as the video adapter circuitry) can be designed to run much faster than they

would with a traditional expansion bus. Some local-bus designs allow peripherals to run at the same speed and with the same width data path as the
system's microprocessor.

m

 

Abbreviation for meter(s).

mA

 

Abbreviation for milliampere(s).

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