LabVIEW
servo motor using parallel port
So there is absolutely no way I cant do it other than using a DAQ card right.
And I do have a NI DAQ CARD but sad thing is my motherboard doesnt have PCI slots. Its all PCI E slots 
There is no alternative way at all I can go around this right.
There are other options to control your scanners but they don't make much sense for you. CTI makes several controllers that allow you to create a pattern in your PC and then send it down to the servo (which drives the galvos). Unfortunately these are more expensive than a basic DAQ card AND they won't read your sensor so you'll still need a DAQ for that.
Your PCI DAQ card will work since it has 2 outputs and 16 (multiplexed) inputs BUT it's only 12-bit so your image resolution is not going to be as good as a cheap 16-bit card. More importantly, it's really old 
, you'll have to use the old (traditional) DAQ drivers instead of the new DAQmx which is much better and easier. If you want to use it I suggest you try and install it first. It may not even work if you're using a newer OS as it's designed for Windows 98! If it does work prepare to spend a lot of time reading manuals and coding the DAQ VIs ...
Good news, I was wrong! There appears to be a version of DAQmx that will run your old card under Vista. It's here: http://joule.ni.com/nidu/cds/view/p/id/2337
Bad news, it's a 1.2 GigaByte download. 
More bad news: according to this: http://digital.ni.com/public.nsf/allkb/B0D5630C0A50D5C6862578E800459248 It won't work in LV 2011 (or maybe it will ).
DAQmx 9.3.5 WILL work with 2011 and SHOULD work with your card but I can't find a link to download it. You may need to call NI and get a straight answer from their engineers before you waste time downloading and trying out things that may not work.
After you install everything you should be able to connect up the physical inputs and outputs and try to generate and read some signals. Check out the DAQmx examples in the Example Finder to get started with that part...
Then you'll need to code up the main application which will move the stage, scan a line, display and store, move the stage, etc. This is a job for the State Machine architecture. Search for info on this board if you need help with that. There's lots of threads about it because it's very useful and popular.
EDIT: Forgot to add, before you do anything look in MAX under software and see if you already have a version of DAQmx. You might as well try it out before you download a huge file.
EDIT2: You can also try out the functionality of the DAQ card right in MAX. Click the card name and go to the test panel tab.
