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计数，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 2.0.1：
Android 2.0.1是Google引入的Android 2.0的更新版本。它具有Android 2.0的所有功能，并进行了一些修改。此版本未引入任何新功能。这个版本与先前的Android 2.0版本非常相似，并且两者都有很多相似之处。该版本具有版本名称。其版本名称为Eclair 。 Android 2.0.1中的API级别为6。它于2009年12月3日发布。
Android 1.0和Android 2.0.1之间的区别：
| S.No. | ANDROID 1.0 | ANDROID 2.0.1 |
|---|---|---|
| 1. | It is the first version of Android. | It is the updated version of Android 2.0. |
| 2. | It is predecessor to Android 1.1. | It is predecessor to Android 2.1 and successor to Android 2.0. |
| 3. | It was released on 23 September 2008. | It was released on 03 December 2009. |
| 4. | The API level in Android 1.0 version is 1. | The API level in Android 2.0.1 version is 6. |
| 5. | It is not used anymore in mobile devices. | It is also not used anymore. |
| 6. | It does not have official version name. | It has official version name like its previous version. |
| 7. | It has unofficial version name ‘Apple pie’. | It has official version name ‘Eclair’. |
| 8. | It had limited features like google maps, gmail, web browser, camera and youtube. | It had all the features of Android 2.0 and no new features were added in this version. |
| 9. | It did not have good user interface. | It had updated user interface. |
| 10. | It did not provide features like live wallpapers and Bluetooth. | It had Bluetooth 2.1 and live wallpaper features. |
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