You need something that LabView can talk to which produces the outputs and inputs to a module - either one of the excellent LabView I/O modules, or from other companies (like www.OnTrak.net in Canada - an excellent A/D I/O card that talks serially to a PC). The LabView modules have VIs already prepared for them, and modules from other manufacturers may or may not have VIs written - if not, you get to write your own VIs to communicate either via the parallel port, or the serial port, out to the I/O module(s). Learning how to write VIs from scratch is a steep learning curve; Good Luck and have fun!
