History and Basics about most popular : Android Mobile OS

 

Company / developer	Google Open Handset Alliance Android Open Source Project (AOSP)
Written in	C (core), C++, Java (UI)
OS family	Android (based on Linux kernel (Unix APIs) and Dalvik)
Working state	Current
Source model	Open source and in most devices with proprietary components
Initial release	September 23, 2008
Latest release	4.4.2 KitKat / December 9, 2013; 3 months ago
Marketing target	Smartphones Tablet computers
Available in	Multi-lingual (46 languages)
Package manager	Google Play, APK
Supported platforms	32-bit ARM, MIPS,x86
Kernel type	Monolithic (modified Linux kernel)
Userland	Bionic libc, mksh shell,native core utilities with a few from NetBSD
Default user interface	Graphical (Multi-touch)
License	Apache License 2.0 Modified Linux kernel under GNU GPL v2
Official website	www.android.com

Content Via : Wikipedia