There's just one small wrinkle: Parallels Access costs $79.99 per year per computer. That's a pretty steep price even if you have only one desktop. Fortunately, there are alternatives that give you very similar functionality for a much lower price: $0. One of them, TeamViewer, is free for personal use. And it's available not just for iPad, but also for iPhone, Android, and Windows Phone 8. (On the desktop side, it's compatible with Windows, Mac, and Linux.) Let's see how you can get your iPad (or other mobile device) connected to your PC without spending a penny.
On your desktop, download and install TeamViewer. You'll note that you have three installation options: