National Instruments Signal Processing Engineering Educational Device NI SPEEDY-33 - Manual (Page 38)

Glossary
NI SPEEDY-33 User Manual G-6 ni.com
flash A form of rewritable memory chip that, unlike a Random Access Memory
chip, holds content without maintaining a power supply.
frequency The number of alternating signals that occur per unit time.
ft feet
H
h hour
Hz hertz—Cycles per second of a periodic signal; the unit of measure for
frequency.
I
I/O Input/Output—The transfer of data to/from a computer system involving
communications channels, operator interface devices, and/or data
acquisition and control interfaces.
in. inch or inches
instrument driver A set of high-level software functions that controls a specific GPIB, VXI,
or RS232 programmable instrument or a specific plug-in DAQ device.
Instrument drivers are available in several forms, ranging from a function
callable language to a virtual instrument (VI) in LabVIEW. You can
download instrument drivers from the Instrument Driver Network at
ni.com/idnet .
J
jack See port .
jumper A small rectangular device used to connect two adjacent posts on a circuit
board. Jumpers are used on some SCXI modules and terminal blocks to
either select certain parameters or enable/disable circuit functionality.