Control 3 stepper motors with labview and NI .

Hello  

I'm an engineer student ; and I want to control 3 stepper motors  for moving along (x , y , z) three axis  with labview and NI hardware . 

I haven't no idea about NI product.  

I ask for what kind of hardware that should I have to accomplish this project. (this my graduation's project) 

after researchs ,I found that I should have a stepper motor driver and motion controller.  Is that enough for this project ? I found MID-7604 as stepper driver for 4 axis . what does it mean 4 axis ? IS it for 4 steppers ?    I found also PCIxxx /PLX  but i don't understand what is this . 

Thanks for  your responses .