The tablet is a device between a Notebook and a smartphone. Because of this positioning, the operating system used to support it is coming from both worlds: Mobiles and Notebooks.
1. Mobile operation systems:
Those operating systems are adapted from the smartphone to bigger screens. They are all using a walled garden environment which allows the development of third party applications under the control of the OS vendor. Except of iOS, all the other operating systems are under development to be compatible with bigger screens.
iOS (Apple)
iOS is the adapted version of the iphone software. It's built for ARM processors, allows touch screen, and operate in a walled garden environment. Apple has been able to leverage the success of its application store and open it also for its tablet. iOS is only available with iPad.
Android (Google)
Android is a Linux based software developed by Google for smart phones. Like the iOS, it's built for ARM processors and operate in a walled garden environment. In their hurry to catch up with Apple iPad, some vendors like Samsung have used the Android 2.2 Froyo on their tablet but with a mixed results. In fact, this Android version is not adapted for tablets. Today, Google is preparing an new version of its Android software for tablets called Gingerbread. Many vendors are waiting for it to launch their tablets in the first quarter of 2011.
WebOS (HP)
After the acquisition of Palm in 2010, HP confirmed the development of the famous Palm WebOS for their future tablets. The first release is expected in the first quarter of 2011.
BlackBerry tablet OS (RIM)
BlackBerry tablet OS is based on QNX system acquired by RIM early in 2010. The OS will be launched in the first quarter of 2011 on the new RIM PlayBook.
2. Notebook operating system:
2. Notebook operating system:
Windows 7 (Microsoft)
Microsoft is going against the flow in the OS market for tablets. While all the other vendors are using their mobile OS to make a compatible version for tablets, Microsoft is refusing to use its Windows 7 Mobile for the same purpose. Instead, it's proposing Windows 7 for Notebooks which is compatible with a traditional PC architecture (x86) with additional touch feature. This option has the disadvantage of being expensive for tablet manufacturers, heavy comparing to the other mobile based OS, and doesn't have the application base to attract third party developers.