Confused and IVI compared with plug-and-play instrument drivers

I'm just going up to LabVIEW and see that when I go to download instrument drivers, there are several lists.  One is a Plug-and-Play and the other is typically IVI.  What is the difference?  So far, I've been through the course of the lesson no. 1 and lesson #2 Basic Developer, but we have not touched on the use of the downloaded drivers.

IVI: Interchangeable Virtual Instrument. With the help of this software layer allows the developer to work with an independent 'generic instrument' of the manufacturer (e.g. Agilent DMM VX OR DMM).

Plug 'n' Play driver: the driver for the same instance of an instrument, necessary for the operating system to identify and drive the instrument. The driver is device-specific.

hope this helps,

Norbert

Tags: NI Software

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