Virtual Desktop is a desktop manager to create many virtual desktops and switch among them. Your computer has many virtual desktops, and each desktop has same screen size as the real screen, so it seems that your computer screen size is enlarged many times by the tool. You can organize your windows and put related windows into one desktop. For example, you can surf Internet in desktop one, use desktop two to focus on writing some documents, and play games in the desktop three. Each desktop will be focused on one subject, so your screen looks clear and well organized, and you don't need to look for a window among lots of windows.