Compatibility Guide

Glossary 163
SGRAM
Acronym for synchronous graphics RAM.
shadowing
A computer's 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.
SIMD
Abbreviation for Single Instruction Multiple Data.
SIMM
Acronym for single in-line memory module. A small circuit board containing
DRAM chips that connects to the system board.
SIP
Acronym for single in-line package, which is a type of housing for electronic
components in which the connecting pins protrude from one side. A SIP is also
called a Single In-line Pin Package (SIPP).
SKU
Acronym for stock keeping unit.
SMART
Acronym for Self-Monitoring Analysis and Reporting Technology. A technology
that allows hard drives to report errors and failures to the system BIOS, which
then displays an error message on the screen. To take advantage of this technology,
you must have a SMART-compliant hard drive and the proper support in the
system BIOS.
SMBIOS
Acronym for system management BIOS.
SMD
Abbreviation for surface mount device.
SMTP
Abbreviation for Simple Mail Transfer Protocol.