Owner's manual

Glossary
79
eliminate high-potential differences and
transients.
Output Settling Time The amount of time required for the
analog output voltage to reach its final
value within specified limits.
Output Slew Rate The maximum rate of change of analog
output voltage from one level to
another.
Overhead The amount of computer processing
resources, such as time and/or
memory, required to accomplish a task.
P
Paging A technique used for extending the
address range of a device to point into
a larger address space
PCI Peripheral Component Interconnect: A
high-performance expansion bus
architecture originally developed by
Intel to replace ISA and EISA. It is
achieving widespread acceptance as a
standard for PCs and work-stations; it
offers a theoretical maximum transfer
rate of 132 Mbytes/s.
PID Control A three-term control mechanism
combining proportional, integral, and
derivative control actions. Also see
proportional control, integral control,
and derivative control.
Pipeline A high-performance processor structure
in which the completion of an
instruction is broken into its elements
so that several elements can be
processed simultaneously from
different instructions.
PLC Programmable logic controller: A highly
reliable special-purpose computer used
in industrial monitoring and control
applications. PLCs typically have