Glossary
SIMATIC IPC1047E
Operating Instructions, 03/2021, A5E50259546-AA
137
Restart
Warm restart of an operating computer without switching off the power supply
<Ctrl + Alt + Del>.
ROM
Read-Only Memory ROM is a read-only memory in which every memory location can be
addressed individually. The programs or data are permanently stored and are not lost in the
event of a power failure.
S.M.A.R.T
The Self-Monitoring, Analysis and Reporting Technology (SMART or S.M.A.R.T.) is an industry
standard integrated in storage media. It makes for permanent monitoring of important
parameters and early detection of imminent problems.
SAS
Serial SCSI interface for connection of hard disk drives, for example, with serial data
transmission.
SATA
Serial ATA Interface for hard disk drives and optical drives with serial data transmission.
Session-At-Once
In session at once, the CD can be written to both with an audio session and a data session.
The two sessions are written to at once (as in disc at once).
SETUP (BIOS Setup)
A program in which information about the device configuration (that is the configuration of
the hardware on the PC/PG) is defined. The device configuration of the PC/PG is preset with
defaults. Changes must therefore be entered in the SETUP if a memory expansion, new
modules or a new drive are added to the hardware configuration.
SSD
A Solid State Drive (SSD) is a drive that can be installed like any other hard disk drive; it does
not contain a rotating disk or other moving parts because only semiconductor memory chips
of similar capacity will be used. This design makes SSDs more rugged, provides shorter access
times, low energy consumption and rapid data transfer.
Track-At-Once
In track-at-once recording, a CD can be written to in bits in several sessions if the CD was not
closed.
