Appendices
Appendices
LifeBook E Series from Fujitsu
127
COM Port
Abbreviation for communication port.
This is your serial interface connection.
Command
An instruction which you give your operating
system. Example: run a particular application
or format a floppy disk.
Configuration
The combination of hardware and software that
makes up your system and how it is allocated
for use.
CRT
Cathode Ray Tube. A display device which uses
a beam of electronic particles striking a lumi-
nescent screen. It produces a visual image by
varying the position and intensity of the beam.
Data
The information a system stores and processes.
DC
Direct current. A voltage or current that does
not fluctuate periodically with time.
Default Value
A preprogrammed value to be used if you fail to
set your own.
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.
DOS
Disk Operating System (MS-DOS is a Microsoft
Disk Operating System).
Driver
A computer program which converts applica-
tion and operating system commands to exter-
nal 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 intercon-
nection between electronic devices.
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