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LifeBook B Series – Section Eight
Default Value
A pre programmed value to be used if you fail to set your
own.
DHCP
Dynamic Host Configuration Protocol
A protocol used to automatically acquire parameters
required for the communication, such as IP address.
The sender of IP address is called a DHCP server, and
the receiver is called a DHCP client.
DIMM
Dual-in-line memory module.
DISE
Drive Image Special Edition.
A utility that allows you to restore the original factory
image on your hard drive in the event of corruption or
accidental erasure of files or applications.
Disk
A spinning platter of magnetic data storage media. If the
platter is very stiff it is a hard drive, if it is highly flexible
it is a floppy disk, if it is a floppy disk in a hard housing
with a shutter it is commonly called a diskette.
Disk Drive
The hardware which spins the disk and has the heads
and control circuitry for reading and writing the data
on the disk.
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.
DNS
Domain Name System
A function to control the association between the IP
address and the name assigned to the computer.
If you do not know the IP address but if you know the
computer name, you can still communicate to that
computer.
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.
ECP
Extended Capability Port. A set of standards for high
speed data communication and interconnection
between electronic devices.
Encryption Key (Network Key)
Key information used to encode data for data transfer.
This device uses the same encryption key to encode and
decode the data, and the identical encryption key is
required between the sender and receiver.
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.
GB
Gigabyte.
Hard drive
A spinning platter of magnetic data storage media where
the platter is very stiff.
I/O
Input/Output. Data entering and leaving your notebook
in electronic form.
I/O Port
The connector and associated control circuits for data
entering and leaving your notebook in electronic form.
IDE
Intelligent Drive Electronics. A type of control interface
for a hard drive which is inside the hard drive unit.
B Series.book Page 80 Friday, April 23, 2004 11:41 AM