Microsoft has been working on touch technology for a while. The big drawback was the hardware interface. But that is no longer the case. Here are some of the enhancements that Microsoft has done to improve the user interaction with their touch screens…

Easier grasp on PC’s.
Microsoft has enlarged icons in Windows 7 for the Start Menu, Taskbar and Windows Explorer. This makes it easier to grasp the PC. So in place of the mouse, you can open and shut programs by directly tapping or double-tapping with your fingers. You can also summon a virtual onscreen keyboard, too, though it’s nowhere near as natural as typing on a physical keyboard.

Multi-touch operations
You can also zoom in on a picture by spreading two fingers apart, or zoom out by pinching them back together. You can “right-click” by holding down one finger while you tap the screen with a second finger.

100 Point Support
Windows 7 can support up to 100 touch points, Microsoft says, though there are hardware constraints (screen size) and the genetic reality of having just so many fingers with which to perform gestures. The behavior on the screen changes depending on how many fingers you use.