Fujitsu P7230 User Manual download pdf (Page 112)

102

LifeBook P7000 Notebook – Section Nine

Diskette

A floppy disk in a hard housing with a shutter.

DMA

Direct Memory Access. Special circuitry for memory

to memory transfers of data which do not require

CPU action.

DMI

Desktop Management Interface. A standard that

provides PC management applications with a common

method of locally or remotely querying and configuring

PC computer systems, hardware and software compo-

nents, and peripherals.

DOS

Disk Operating System (MS-DOS is a Microsoft Disk

Operating System).

Driver

A computer program which converts application and

operating system commands to external devices into the

exact form required by a specific brand and model of

device in order to produce the desired results from that

particular equipment.

ESD

Electro-Static Discharge. The sudden discharge of elec-

tricity from a static charge which has built-up slowly.

Example: the shock you get from a doorknob on a dry day

or the sparks you get from brushing hair on a dry day.

Extended Memory

All memory more than the 640KB recognized by

MS-DOS as system memory.

FCC

Federal Communication Commission.

Floppy Disk

A spinning platter of magnetic data storage media which

is highly flexible.

Gigabyte.

Hard drive

A spinning platter of magnetic data storage media where

the platter is very stiff.

Hexadecimal

A decimal notation for the value of a 4 bit binary

number. (0-9, A, B, C, D, E, F) Example: 2F in

hexadecimal = 00101111 in binary = 47 in decimal.

I/O

Input/Output. Data entering and leaving your LifeBook

notebook in electronic form.

I/O Port

The connector and associated control circuits for data

entering and leaving your LifeBook notebook in elec-

tronic form.

IDE

Intelligent Drive Electronics. A type of control interface

for a hard drive which is inside the hard drive unit.

IEEE 1394

The IEEE 1394 (also known as “Firewire” or “iLink”)

standard allows you to connect devices that are

compliant with IEEE standard 1394. This port is effec-

tively a very fast communications port. This architecture

is very good for transferring large files, such as those

from digital cameras.

IRQ

Interrupt Request. An acronym for the hardware signal

to the CPU that an external event has occurred which

needs to be processed.

Kilobyte.

LAN

Local Area Network. An interconnection of computers

and peripherals within a single limited geographic

location which can pass programs and data amongst

themselves.

LCD

Liquid Crystal Display. A type of display which makes

images by controlling the orientation of crystals in a

crystalline liquid.

Lithium ion Battery

A type of rechargeable battery which has a high power-

time life for its size and is not subject to the memory

effect as Nickel Cadmium batteries.

Megabyte.

Megahertz

1,000,000 cycles per second.

Memory

A repository for data and applications which is readily

accessible to your LifeBook notebook CPU.

MHz

Megahertz.

Modem

A contraction for MOdulator-DEModulator. The

equipment which connects a computer or other data

terminal to a communication line.

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