Hi Sheejapgmanoj, Yes, you can use the analog input at the same time you use the analog output channels. They are controlled by two different tasks. If you are looking for some getting started help with our DAQmx driver (which the 6008 uses), I would recommend taking a look at the site <a href="http://www.ni.com/dataacquisition/" target="_blank">here</a>. Half-way down the page you can find some demos for getting started with the DAQmx driver. I hope this helps,Paul C.