Silicon Graphics O2+ Hardware Reference Manual page 243

Glossary
(electro-static discharge or ESD) that could damage the equipment. To prevent this, you
must always wear a wrist strap when working with internal parts of a workstation.
subsystem
A portion of a software product. Each product consists of several subsystems; some are
required and some are optional.
super-user
An alternate name for the user of the root login account. See also administrator, root
account, and system administrator.
S-video
An increasingly popular analog video signal format that achieves higher picture quality
than composite video by passing the luminance (brightness) and chrominance (color)
information on separate wires.
system
All the hardware and software that make up the workstation.
system administrator
The individual(s) responsible for setting up, maintaining, and troubleshooting a
networked or standalone system.See also administrator and network administrator.
system crash
This occurs when the IRIX operating system fails and the system will not accept any
keyboard or mouse input.
system disk
The physical disk that contains the standard IRIX operating system software.
System Manager
A set of tools that the administrator uses to set up and manage the workstation. To access
the System Manager, from the Toolchest, you select System.
system software
The standard IRIX operating system software and SGI tools on the system disk and on
the tape or CD-ROM that you use in the event of a system crash.
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