Silicon Graphics O2+ Hardware Reference Manual page 244

Glossary
224
TCP/IP (Transmission Control Protocol/Internet Protocol)
A set of networking protocols for wide area networks (WANs) that is also gaining
popularity on local area networks (LANs).
thumbscrew
The ridged knob attached to a screw in a cable connector. You turn the thumbscrew to
secure the connector to an outlet.
Toolchest
The menus in the upper left-hand corner of the desktop. From the Toolchest, you can
select system tools such as the System Manager and Software Manager.
upgrade (hardware)
Hardware that you add to the basic workstation that increases performance, such as
additional memory and option boards.
unmount
To cause a filesystem that is accessible from a specific directory on your workstation to
be temporarily inaccessible.
user ID
A number that uniquely identifies a user to the system.
window
A portion of the screen with text or graphics that you can manipulate.
workstation
The physical hardware that contains the CPU, graphics boards, a system disk, and a
power supply. You connect it to a monitor, keyboard, and mouse to configure a working
system. It is also sometimes referred to as the chassis.
wrist strap
A band with a loop for your wrist at one end and copper foil at the other. You attach the
end with the foil to a metal part of the workstation and place the loop around your wrist.
You use the strap whenever you work with internal components of the workstation to
avoid electrical shocks to yourself and the components. See also static electricity.
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