1. Android 1.0 :
Android 1.0 is the very first version of Android which was introduced by Google. It had some basic features including web browser support, camera support, Gmail accounts, Google maps and Youtube application. Although it does not have the official version name like further introduces versions but unofficially it is called Apple Pie. The API level in Android 1.0 version is 1. It is not used anymore in the mobile devices. It was released on 23 September 2008.
2. Android 4.0 :
Android 4.0 is next version of Android after ‘Honeycomb’ which was introduced by Google. Some major user features like new lock screen actions, improved text input and spell-checking, control over network data, EAS v14 support email application and WI-FI direct were introduced in this version. Key developer features like low level streaming multimedia, grid layout, spell checking service, address space layout randomization, VPN client API, remote device camera enable/disable, ZSL exposure, continuous focus and image zoom were added int this version. Its version name is Ice Cream Sandwich. The API level in Android 4.0 is 14. It was released on 18 October 2011.
Difference between Android 1.0 and Android 4.0 :
|S.No.||ANDROID 1.0||ANDROID 4.0|
|1.||It is the first version of Android.||It is the next version of Android after ‘Honeycomb’.|
|2.||It is predecessor to Android 1.1.||It is predecessor to Android 4.0.1.|
|3.||It was released on 23 September 2008.||It was released on 18 October 2011.|
|4.||The API level in Android 1.0 version is 1.||The API level in Android 4.0 version is 14.|
|5.||It did not have developer features.||Some major developer features were added in this version.|
|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 ‘Ice Cream Sandwich’.|
|8.||It had limited basic features like google maps, gmail, web browser, camera and youtube.||It had all features of previous versions and some key user and developer features were added in this version.|
|9.||It did not have WiFi direct.||WiFi direct was introduced in this version.|
|10.||It did not have lock screen actions.||New lock screen actions were added in this version.|