The main hardware platform for Android is the 32-bit ARMv7 architecture. The unofficial Android-x86 project provides support for the x86 architecture, and Google TV uses a special x86 version of Android. Since 2012, Intel processors began to appear on more mainstream Android platforms, such as phones.Minimum hardware requirements have been upgraded in steps over time, with the new Android version releases. Original minimums were 32 MB of RAM, 32 MB of Flash memory, and a 200 MHz ARM architecture (ARMv5) processor.As of October 2011 and version 4.0, a graphics processing unit (GPU) that supports OpenGL ES 2.0 hardware acceleration is mandatory, regardless of whether applications directly use the OpenGL ES or not.As of November 2013 and Android version 4.4, an ARMv7 processor is required, while recommended minimum amount of RAM is 512 MB. The required minimum amount of RAM available to Android 4.4 is 340 MB this amount does not include memory dedicated to various hardware components such as the baseband processor, and all devices with less than 512 MB of RAM must report themselves as "low RAM" devices. MIPS and x86 architectures are also supported through unofficial ports. Android was first made to run on 64-bit x86 and then ARM64. Android 4.3 added support for OpenGL ES 3.0; if used, support for both older versions is still mandatory.In addition to running directly on x86-based hardware, Android can also be run on x86 architecture by using an Android emulator which is part of the Android SDK, or by using BlueStacks or Andy.As this is not complete information. this info. reference at wikipedia
Rating:
1.Android 4.3 jelly bean will be like 9.2/10 from user response to operating systeam.
2.Android 4.4 kitkat will be like 9.7/10 from user response to operating systeam.