Glossary
VXI-1394 Interface for Windows NT/98
G-6
www.ni.com
IEC
International Electrotechnical Commission. The IEC publishes
internationally recognized standards. IEC 60068 contains information on
environmental testing procedures and severities.
IEEE
Institute of Electrical and Electronics Engineers
IEEE 1394
A cross-platform implementation of the high-speed serial data bus, defined
by IEEE Standard 1394-1995, that can move large amounts of data between
computers and peripheral devices. It features simplified cabling, hot
swapping, and transfer speeds of up to 400 Mbits/s. IEEE 1394 also enables
the connection of digital consumer products, including digital camcorders,
digital video tapes, digital video disks, set-top boxes, and music systems,
directly to a personal computer.
i.LINK
A brand name initiated by Sony for digital consumer products using
IEEE 1394. See IEEE 1394.
in.
inches
I/O
Input/output—the techniques, media, and devices used to achieve
communication between machines and users.
instrument driver
A set of routines designed to control a specific instrument or family of
instruments, and any necessary related files for LabWindows/CVI or
LabVIEW.
interrupt
A means for a device to request service from another device; a computer
signal indicating that the CPU should suspend its current task to service a
designated activity.
interrupt handler
A VMEbus functional module that detects interrupt requests generated by
interrupters and responds to those requests by requesting status and identify
information.
interrupt level
The relative priority at which a device can interrupt.
IRQ*
interrupt signal
isochronous
Pertains to processes that require timing coordination to be successful, such
as voice and digital video transmission. A sound or picture going from a
peripheral computer device or across a network into a computer or
television set needs to arrive at close to the same rate of data flow as the
source. In IEEE 1394, this protocol is used for purposes such as feeding
digital image data from a peripheral device (such as a video camera) to a
display mechanism within a computer.
