Android 1.0和Android 4.2之间的区别

1. Android 1.0：
Android 1.0是Google推出的第一个Android版本。它具有一些基本功能，包括Web浏览器支持，相机支持，Gmail帐户，Google地图和Youtube应用程序。尽管它没有正式的版本名称(如进一步介绍的版本)，但非官方地将其称为Apple Pie 。 Android 1.0版本中的API级别为1。在移动设备中不再使用它。它于2008年9月23日发布。

2. Android 4.2：
Android 4.2是Google推出的Android 4.1.2之后的下一个Android版本。此版本中添加了一些关键的用户功能，如锁屏小部件，手势键入，带有Miracast的无线显示以及用于平板电脑的多用户功能。添加了关键的开发人员功能，例如垂直同步计时，三重缓冲，减少的触摸延迟，CPU输入提升，本机RTL支持，外部显示支持，嵌套片段，RenderScript计算，RenderScript ScriptGroups，内置内在函数(例如模糊)，用于高性能图像处理的FilterScript。在这个版本中。它的版本名称是Jelly Bean 。 Android 4.2中的API级别为17。该级别于2012年11月13日发布。

Android 1.0和Android 4.2之间的区别：

S.No.	ANDROID 1.0	ANDROID 4.2
1.	It is the first version of Android.	It is the next version of Android after Android 4.1.2.
2.	It is predecessor to Android 1.1.	It is predecessor to Android 4.2.1 and successor to Android 4.1.2.
3.	It was released on 23 September 2008.	It was released on 13 November 2012.
4.	The API level in Android 1.0 version is 1.	The API level in Android 4.2 version is 17.
5.	It has 0 % android market share.	It has 1.5 % android market share.
6.	It does not have official version name.	It has official version name like its other previous versions.
7.	It has unofficial version name ‘Apple Pie’.	It has official version name ‘Jelly Bean’.
8.	It had limited basic features like google maps, gmail, web browser, camera and youtube.	It had all features of previous versions and some new user and developer feature were added in this version.
9.	It did not have lockscreen widgets.	Lockscreen widgets were introduced in this version.
10.	It did not have multi-user facilities for tablets.	Multi-user facilities for tablets were introduced in this version.

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