Microsoft developed a mobile operating system known as Windows mobile for smartphones and Pocket PC. Many versions of Window Mobile have a standard set of features, for example, multitasking. It provides Internet Connection sharing feature that allows the phone to share the network with computers through USB and Bluetooth. With the launch of new versions, the user interface has changed dramatically leaving similar functionalities.
It was released on February 2, 2010, as the Pocket PC 2000. Initially, Windows Mobile was based on the Windows CE kernel. This included the collection of basic applications designed using the Microsoft Windows API. The third party developers have developed software for Windows mobile so that no restrictions were in place by Microsoft.
The Windows Mobile phones are now available with a stylus. This stylus is used to type and submit commands on the screen. Initially, the Windows mobile devices were available with resistive touchscreen that required a stylus for providing input. Later on, the devices were made available with capacitive sensing technology that did not require a stylus.