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 7.0：
Android 7.0是Google推出的Android 6.0.1之后的下一个Android版本。它具有以前版本的所有功能，并且在此版本中还添加了一些新的用户和开发人员功能。此版本增加了关键用户功能，例如unicode 9.0表情符号，更好的多任务处理，多窗口模式(PIP，自由格式窗口)，无缝的系统更新和更好的性能。此版本中引入了关键的开发人员功能，例如持续性能模式API，vulkan 3D渲染API和Daydream虚拟现实平台。它的版本名称是Nougat 。 Android 7.0中的API级别为24。它于2016年8月22日发布。
Android 1.0和Android 7.0之间的区别：
| S.No. | ANDROID 1.0 | ANDROID 7.0 |
|---|---|---|
| 1. | It is the first version of Android. | It is the next version of Android after Android 6.0.1. |
| 2. | It is predecessor to Android 1.1. | It is predecessor to Android 7.1 and successor to Android 6.0.1. |
| 3. | It was released on 23 September 2008. | It was released on 22 August 2016. |
| 4. | The API level in Android 1.0 version is 1. | The API level in Android 7.0 version is 24. |
| 5. | It has 0 % android market share. | It has 11.4 % 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 ‘Nougat’. |
| 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 features were added in this version. |
| 9. | It did not have multi-window mode. | Multi-window mode was introduced in this version. |
| 10. | It did not have emojis. | Unicode 9.0 emoji was added in this version. |
| 11. | It did not have developer features. | Various developer features like daydream virtual reality platform etc. were added in this version. |
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