how do i put my itunes account on a different computer
how do i transfer my itunes account onto a new computer
I imagine you mean that you want to transfer your purchases from one computer to another computer. You can do this in several ways. See the following article for how to transfer iTunes Store purchases using Home Sharing, an external drive, an iOS device (iPhone, iPad, or iPod), the Windows Migration Assistant, and CDs/DVDs:
iTunes: How to move your music to a new computer