Android vs ios vs Windows

If you are a new smartphone shopper or a current smartphone shopper approaching an upgrade, you may be curious about the mobile platforms that are available. So here is a basic comparison of the Platforms available.
Android is a Linux-based operating system for mobile devices founded in Palo Alto, California, United States in October 2003. It is developed by the Open Handset Alliance, led by Google, and other companies. Google purchased the initial developer of the software, Android Inc., on August 17, 2005. There are more than 550,000 apps available for Android.
 iOS (previously iPhone OS) is a mobile operating system developed and distributed by Apple Inc. Originally released in 2007 for the iPhone and iPod Touch, it has been extended to support other Apple devices such as the iPad and Apple TV. Unlike Microsoft’s Windows CE (Windows Phone) and Google’s Android, Apple does not license iOS for installation on non-Apple hardware. As of June 12, 2012, Apple’s App Store contained more than 650,000 iOS applications.IOS latest release is IOS 6
IOS 1.x
First relaese
IOS 2.x
Second Major release
iPhone 3G
IOS 3.x
Third Major Release
iPhone 3GS
IOS 4.x
Fourth Major Release
iPhone 4G
IOS 5.x
Fifth Major Release
Initial release on iPhone 4S
IOS 6
6th Release
Limited support for iPhone 4, iPhone 3GS and iPod Touch (4th generation)

Windows 8 is the next version of Microsoft Windows, a series of operating systems produced by Microsoft for use on PCs and Mobiles. The release to manufacturing (RTM) is expected around July 2012 .Windows 8’s server counterpart, Windows Server 2012, is in development concurrently with Windows 8
Comparison

IOS 6
Android 4.1 Jelly Beans
Windows 8
Kernel
OS X
Linux
Windows NT
Supports
GSM,CDMA
GSM
CDMA
Supported hardware
IPad,Iphone,Ipod
Large No of platforms
Large No of platforms
Movie store
Itune
Google play
Xbox services
Social Gaming
Yes
No
Yes,Xbox Live
3D map
YEs
Yes
Yes
Cloud Support
Icloud
Google drive
Sky drive
Video calls 3G/4G
Yes
Yes
Yes
Search Engine
Google
Yahoo,Google
Bing