NEC EXPRESS 320Lb User Manual page 167

EMS
(Expanded Memory Specification) A method of accessing memory beyond the 640K limit
of DOS by exchanging data in and out of main memory at high speeds. Some software
requires EMS to operate.
EPROM
(Erasable Programmable Read-Only Memory) A type of memory device that is usually
used to store system BIOS code. This code can be erased with ultraviolet light, but is not
lost when the computer is powered off. See also flash EPROM and ROM.
expansion slot
See backplane slot.
extended memory
The protected memory above 1M that is directly accessible by the microprocessor through
certain utilities and operating systems.
F
fault tolerance
The capability of a system to respond smoothly to an unexpected hardware or software
failure. There are many levels of fault tolerance, of which the lowest is having the ability to
continue operation in the event of a power failure. Fault-tolerant computer systems mirror
all operations, which means that every operation is performed on two or more duplicate
systems at all times, so that if one fails another takes over.
flash EPROM
A type of memory device that is usually used to store system BIOS code. This code can be
replaced with updated code from a floppy disk, but is not lost when the computer is
powered off. See also EPROM and ROM.
floppy disk drive
See disk drive.
format
The process used to organize a hard or floppy disk into sectors so it can accept data.
Formatting destroys all previous data on the disk.
FRB
(Fault Resilient Boot) Is a server management feature. FRB attempts to boot a system using
the alternate processor or DIMM.
G
(Gigabyte)
1,073,741,824 bytes. See also byte.
4 Glossary