send event related signal to serial/parallel ports

[David McFarlane]

Estelle,

> Reading the documentation, I realized that event-related signals are
> usually sent through the parallel port. Is there a reason to use the
> parallel port instead of the serial port ?

Yes, and if you consult any standard reference on parallel ports and 
serial ports then the answer will become obvious.  Or just use Google. 
In fact, if you do a proper search of either this Google Group or the 
PST Forum you should find where I have already discussed this at length.

-- David McFarlane, Professional Faultfinder

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