What exactly is VISA?

[crossrulz · Accepted solution]

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@The_Sugarman wrote:

If I were to install another NI hardware in, would I need to open VISA to this particular device, atleast once to configure it?

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What kind of NI hardware?  Another RIO card?  A DAQ card?  A modular instrument of some sort?  All of these have their own API that you should be using.  VISA is an API for talking across communication buses to stand alone instruments.

[RedAG]

Thanks guys. That helped a lot. Your replies have given me a good base to start understanding this.