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Glossary 191
S
SAS — serial attached SCSI — A faster, serial version of the SCSI interface (as opposed
to the original SCSI parallel architecture).
SATA — serial ATA — A faster, serial version of the ATA (IDE) interface.
ScanDisk — A Microsoft utility that checks files, folders, and the hard disk’s surface
for errors. ScanDisk often runs when you restart the computer after it has stopped
responding.
SCSI — small computer system interface — A high-speed interface used to connect
devices to a computer, such as hard drives, CD drives, printers, and scanners. The
SCSI can connect many devices using a single controller. Each device is accessed by an
individual identification number on the SCSI controller bus.
SDRAM — synchronous dynamic random-access memory — A type of DRAM that is
synchronized with the optimal clock speed of the processor.
serial connector — An I/O port often used to connect devices such as a handheld
digital device or digital camera to your computer.
Service Tag — A bar code label on your computer that identifies your computer when
you access Dell Support at support.dell.com or when you call Dell for customer service
or technical support.
setup program — A program that is used to install and configure hardware and
software. The setup.exe or install.exe program comes with most Windows software
packages. Setup program differs from system setup.
shortcut — An icon that provides quick access to frequently used programs, files,
folders, and drives. When you place a shortcut on your Windows desktop and double-
click the icon, you can open its corresponding folder or file without having to find it
first. Shortcut icons do not change the location of files. If you delete a shortcut, the
original file is not affected. Also, you can rename a shortcut icon.
SIM — Subscriber Identity Module — A SIM card contains a microchip that encrypts
voice and data transmissions. SIM cards can be used in phones or portable computers.
smart card — A card that is embedded with a processor and a memory chip. Smart
cards can be used to authenticate a user on computers equipped for smart cards.
S/PDIF — Sony/Philips Digital Interface — An audio transfer file format that allows
the transfer of audio from one file to another without converting it to and from an
analog format, which could degrade the quality of the file.
standby mode — A power management mode that shuts down all unnecessary
computer operations to save energy.
book.book Page 191 Friday, November 30, 2007 11:28 AM