Z:gnu-www-ja-android-and-users-freedom--5a1347-Android is an operating system/en

Android is an operating system primarily for mobile phones and other devices, which consists of Linux (Torvalds' kernel), some libraries, a Java platform and some applications. Linux aside, the software of Android versions 1 and 2 was mostly developed by Google; Google released it under the Apache 2.0 license, which is a lax free software license without copyleft.