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Glossary
RT Series DAQ Device User Manual G-4 www.ni.com
N
NI-DAQ National Instruments driver software for DAQ hardware
O
operating system base-level software that controls a computer, runs programs, interacts with
users, and communicates with installed hardware or peripheral devices
P
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.
R
RAM random-access memory
real time a property of an event or system in which data is processed as it is acquired
instead of being accumulated and processed at a later time
resource locking a technique whereby a device is signaled not to use its local memory while
the memory is in use from the bus
S
shared memory memory that can be sequentially accessed by more than one controller or
processor but not simultaneously accessed. Also known as dual-mode
memory.
soft reboot restarting a computer without cycling the power, usually through the
operating system