User`s guide

Agilent VISA User’s Guide 155
System Controller
One Controller on a GPIB is the System Controller. This is
a master Controller; it has the ability to demand control
and to assert the IFC (Interface Clear) and REN (remote
enable) lines.
system tray
See notification area.
Tal ker
A device that transmits data onto the bus when instructed
(addressed to talk).
task guide
The information and logic represented in the left pane of
the Connection Expert window. The task guide provides
links to actions and information that help guide you
through the most common I/O configuration tasks.
taskbar notification area
See notification area.
test system
An entire test setup including a controller (often a PC),
instruments, interfaces, software, and any remote
controllers, instruments, and interfaces that are
configured to be used as part of the system.
thread
An operating system object that consists of a flow of
control within a process. A single process may have
multiple threads, each having access to the same data
space within the process. Each thread has its own stack,
and all threads may execute concurrently (either on
multiple processors, or by time- sharing a single
processor).