Fujitsu T4215 T4215 User's Guide - Page 91

Asymmetric Digital Subscriber Line

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Glossary Glossary AC Adapter A device which converts the AC voltage from a wall outlet to the DC voltage needed to power your Tablet PC. ACPI Advanced Configuration and Power Interface Active-Matrix Display A type of technology for making flat-panel displays which has a transistor or similar device for every pixel on the screen. AdHoc A designation for wireless LAN network configuration. It indicates a form of communication limited to those personal computers which have wireless LAN function. ADSL Asymmetric Digital Subscriber Line Technology for transporting high bit-rate services over ordinary phone lines. Auto/Airline Adapter A device which converts the DC voltage from an automobile cigarette lighter or aircraft DC power outlet to the DC voltage needed to power your Tablet PC. BIOS Basic Input-Output System. A program and set of default parameters stored in ROM which tests and operates your Tablet PC when you turn it on until it loads your installed operating system from disk. Information from the BIOS is transferred to the installed operating system to provide it with information on the configuration and status of the hardware. Bit An abbreviation for binary digit. A single piece of information which is either a one (1) or a zero (0). bps An abbreviation for bits per second. Used to describe data transfer rates. Boot To start-up a computer and load its operating system from disk, ROM or other storage media into RAM. Bus An electrical circuit which passes data between the CPU and the sub-assemblies inside your Tablet PC. Byte 8 bits of parallel binary information. Cache Memory A block of memory built into the micro-processor which is much faster to access than your system RAM and used in specially structured ways to make your overall data handling time faster. CardBus A faster, 32-bit version of the PC Card interface which offers performance similar to the 32-bit PCI architecture. CD-ROM Compact disk read only memory. This is a form of digital data storage which is read optically with a laser rather than a magnetic head. A typical CD-ROM can contain about 600MB of data and is not subject to heads crashing into the surface and destroying the data when there is a failure nor to wear from reading. Channel The frequency band of wireless LAN to be used in communications over wireless LAN or at the access point. CMOS RAM Complementary metal oxide semiconductor random access memory. This is a technology for manufacturing random access memory which requires very low levels of power to operate. 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 luminescent 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 pre programmed value to be used if you fail to set your own. 83

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83
Glossary
Glossary
AC Adapter
A device which converts the AC voltage from a wall
outlet to the DC voltage needed to power your Tablet
PC.
ACPI
Advanced Configuration and Power Interface
Active-Matrix Display
A type of technology for making flat-panel displays
which has a transistor or similar device for every pixel
on the screen.
AdHoc
A designation for wireless LAN network configuration.
It indicates a form of communication limited to those
personal computers which have wireless LAN function.
ADSL
Asymmetric Digital Subscriber Line
Technology for transporting high bit-rate services over
ordinary phone lines.
Auto/Airline Adapter
A device which converts the DC voltage from an auto-
mobile cigarette lighter or aircraft DC power outlet to
the DC voltage needed to power your Tablet PC.
BIOS
Basic Input-Output System. A program and set of
default parameters stored in ROM which tests and
operates your Tablet PC when you turn it on until it
loads your installed operating system from disk. Infor-
mation from the BIOS is transferred to the installed
operating system to provide it with information on the
configuration and status of the hardware.
Bit
An abbreviation for binary digit. A single piece of
information which is either a one (1) or a zero (0).
bps
An abbreviation for bits per second. Used to describe
data transfer rates.
Boot
To start-up a computer and load its operating system
from disk, ROM or other storage media into RAM.
Bus
An electrical circuit which passes data between the CPU
and the sub-assemblies inside your Tablet PC.
Byte
8 bits of parallel binary information.
Cache Memory
A block of memory built into the micro-processor
which is much faster to access than your system RAM
and used in specially structured ways to make your
overall data handling time faster.
CardBus
A faster, 32-bit version of the PC Card interface which
offers performance similar to the 32-bit PCI
architecture.
CD-ROM
Compact disk read only memory. This is a form of
digital data storage which is read optically with a laser
rather than a magnetic head. A typical CD-ROM can
contain about 600MB of data and is not subject to heads
crashing into the surface and destroying the data when
there is a failure nor to wear from reading.
Channel
The frequency band of wireless LAN to be used in
communications over wireless LAN or at the access
point.
CMOS RAM
Complementary metal oxide semiconductor random
access memory. This is a technology for manufacturing
random access memory which requires very low levels of
power to operate.
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 luminescent 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 pre programmed value to be used if you fail to set
your own.