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Glossary 15
520
Acronym for read-only memory. Your
computer contains some programs es-
sential to its operation in ROM code.
Unlike RAM, a ROM chip retains its
contents even after you turn off your com-
puter. Examples of code in ROM include
the program that initiates your computers
boot routine and the POST.
USP
Abbreviation for revolutions per minute.
57&
Abbreviation for real-time clock. Battery-
powered clock circuitry inside the com-
puter that keeps the date and time after
you turn off the computer.
6&6,
Acronym for small computer system in-
terface. An I/O bus interface with faster
data transmission rates than standard
ports. You can connect up to seven devic-
es to one SCSI interface.
6'06
Abbreviation for SCSI device management
system.
6'5$0
Abbreviation for Synchronous Dynamic
Random Access Memory.
6'6
Abbreviation for scalable disk system.
6(&
Abbreviation for single-edge connector
cartridge.
VHF
Abbreviation for second(s).
VHFWRU
The fundamental unit of data access for a
hard-disk drive. For PC-compatible sys-
tems, a sector is usually 512 bytes. See
also block and block size.
VHULDOFRQVROH
An ASCII or ANSI terminal attached to a
filers serial port. Used to monitor and
manage filer operations.
VHULDOSRUW
An I/O port used most often to connect a
modem or a mouse to your computer. You
can usually identify a serial port on your
computer by its 9-pin connector.
VKDGRZLQJ
A computers system and video BIOS
code is usually stored on ROM chips.
Shadowing refers to the performance-
enhancement technique that copies BIOS
code to faster RAM chips in the upper
memory area (above 640 KB) during the
boot routine.
VKDUH
A directory or directory structure on the
filer that has been made available to net-
work users and can be mapped to a drive
letter on a CIFS client.
60$57
Acronym for Self-Monitoring Analysis Re-
porting Technology. A technology that
allows hard-disk drives to report errors
and failures to the system BIOS, which
then displays an error message on the
screen. To take advantage of this technol-
ogy, you must have a SMART-compliant
hard-disk drive and the proper support in
the system BIOS.
60%
Acronym for system management bus.
600
Abbreviation for server monitor module.
An ISA expansion card that provides a mo-
dem interface for out-of-band monitoring
and control of a server.
603
Abbreviation for symmetric
mutiprocessing.
606
Abbreviation for Systems Management
Server.
6103
Abbreviation for Simple Network Man-
agement Protocol.