HP StorageWorks A7298A Manual page 72

Glossary
Boot BIOS
Software coded into the chips on the HBA. A special program used to boot and control the
computer.
Broadband
In data transmission, it denotes transmission facilities capable of handling frequencies greater
than those required for high-grade voice communications. The higher frequency allows the
carrying of several simultaneous channels.
Cladding
The dielectric material surrounding the core of an electrical fiber or material surrounding the
core of a fiber optic cable. It usually refers to diameter, often 125 m, measured in microns.
Connector
A mechanical device used to align and join two fibers together to provide a means for
attaching and decoupling it to a transmitter, receiver, or another fiber.
Core
The central region of an optical fiber through which light is transmitted.
Custom Device Module (CDM)
A CDM is the driver component in the NetWare Peripheral Architecture used to drive specific
storage devices attached to the HBA. See also NetWare Peripheral Architecture.
Data Rate
The maximum number of bits of information that can be transmitted per second in a data
transmission link. It is typically expressed as Megabits per second (Mbps).
Device Driver
A software program that enables a personal computer to communicate with hard drives,
CD-ROM drives, printers, and other peripherals. Device drivers are stored on a hard drive and
are loaded into memory at boot up.
Duplex Cable
A two-fiber cable suitable for duplex transmission or transmissions in two directions.
Glossary–2 host bus adapter for Windows and Linux installation guide