127
- Glossary
Bus
An electrical circuit which passes data between the CPU and the sub-assemblies inside your LifeBook
notebook.
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
Range of narrow-band frequencies used by the WLAN device to transmit data. IEEE802.11b/g - 11
channels, 22 MHz wide channels.
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.
