National Instruments NI 653x, User Manual, Page: 132 / 147

Glossary
653X User Manual G-6 ni.com
M
M Mega—the standard metric prefix for 1 million or 10 6 , when used with
units of measure such as volts and hertz
Measurement &
Automation Explorer
(MAX) a controlled centralized configuration environment that allows you to
configure all of your National Instruments DAQ, GPIB, IMAQ, IVI,
Motion, VISA, and VXI devices
MB/s A unit for data transfer that means one million or 10 6 bits per second
mask the bits that are significant for pattern detection, also applies to change
detection
MSB Most Significant Bit
P
pattern I/O Data-transfer mode in which 653 X transfers data on the falling or rising
edge of a TTL signal, typically at a constant rate
PCI Peripheral Component Interconnect—A high-performance expansion bus
architecture originally developed by Intel to replace ISA and EISA. It has
achieved widespread acceptance as a standard for PCs and workstations; it
offers a theoretical maximum transfer rate of 132 MB/s.
PCLK see control signals
PCMCIA An expansion bus architecture that has found widespread acceptance as a
de facto standard in notebook-sized computers. It originated as a
specification for add-on memory cards written by the Personal Computer
Memory Card International Association.
peripheral device any external device connected to the 653 X device that the 653 X controls,
monitors, tests, or communicates with
Plug and Play ISA a specification prepared by Micorsoft, Intel, and other PC-related
companies that will result in PCs with plug-in boards that can be fully
configured in software, without jumpers or switches on the devices
port a collection of lines, usually eight
posttrigger acquiring data that occurs after a trigger