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Glossary 181
ROM — Read-only memory. Your system contains some programs essential to its
operation in ROM code. A ROM chip retains its contents even after you turn off your
system. Examples of code in ROM include the program that initiates your system’s
boot routine and the POST.
ROMB — RAID on motherboard.
SAN — Storage Area Network. A network architecture that enables remote network-
attached storage devices to appear to a server to be locally attached.
SAS — Serial-attached SCSI.
SATA — Serial Advanced Technology Attachment. A standard interface between the
system board and storage devices.
SCSI — Small computer system interface. An I/O bus interface with faster data
transmission rates than standard ports.
SD card — Secure digital flash memory card.
SDRAM — Synchronous dynamic random-access memory.
sec — Second(s).
serial port — A legacy I/O port with a 9-pin connector that transfers data one bit at a
time and is most often used to connect a modem to the system.
service tag — A bar code label on the system used to identify it when you call Dell for
technical support.
SMART — Self-Monitoring Analysis and Reporting Technology. Allows hard drives to
report errors and failures to the system BIOS and then display an error message on the
screen.
SMP — Symmetric multiprocessing. Used to describe a system that has two or more
processors connected via a high-bandwidth link and managed by an operating system,
where each processor has equal access to I/O devices.
SNMP — Simple Network Management Protocol. A standard interface that allows a
network manager to remotely monitor and manage workstations.
striping — Disk striping writes data across three or more disks in an array, but only
uses a portion of the space on each disk. The amount of space used by a "stripe" is the
same on each disk used. A virtual disk may use several stripes on the same set of disks
in an array. See also guarding, mirroring, and RAID.
SVGA — Super video graphics array. VGA and SVGA are video standards for video
adapters with greater resolution and color display capabilities than previous standards.
book.book Page 181 Tuesday, March 31, 2009 5:26 PM