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LifeBook T4200 Series Tablet PC - Section Eight
DHCP
Dynamic Host Configuration Protocol
A protocol used for automatically fetching communica-
tion parameters such as IP addresses. The side which
assigns IP address is called DHCP server and the side
that is assigned it is called DHCP client.
DIMM
Dual-in-line memory module.
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 components, and peripherals.
DNS
Domain Name System
A function that controls the correspondence of IP
addresses assigned to a computer with the name. Even
for those computers whose IP addresses are unknown, if
their names are known, it is possible to communicate
with them.
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 Tablet PC
in electronic form.
I/O Port
The connector and associated control circuits for data
entering and leaving your Tablet PC in electronic form.
IDE
Intelligent Drive Electronics. A type of control interface
for a hard drive which is inside the hard drive unit.
IEEE802.11a
One of the wireless LAN standards prescribed by the 802
committee in charge of establishing standards of LAN
technology in IEEE (Institute of Electrical and Electronic
Engineers). This standard allows communications at the
maximum speed of 54 Mbps by using a 5 GHz band
which can freely be used without radio communication
license.
T Series.book Page 84 Thursday, September 14, 2006 5:24 PM