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 4.0.1 :
Android 4.0.1 is next version of Android after Android 4.0 which was introduced by Google. It had all the features of previous versions and some major user features were also added in this version. Some key user features like facial recognition (face unlock), UI use Hardware acceleration, better voice recognition, web browser allows up to 16 tabs, updated launcher and android beam application to exchange data through NFC were introduced in this version. Its version name is Ice Cream Sandwich. The API level in Android 4.0.1 is 14. It was released on 19 October 2011.
Difference between Android 1.0 and Android 4.0.1 :
|S.No.||ANDROID 1.0||ANDROID 4.0.1|
|1.||It is the first version of Android.||It is the next version of Android after Android 4.0.|
|2.||It is predecessor to Android 1.1.||It is predecessor to Android 4.0.2 and successor to Android 4.0.|
|3.||It was released on 23 September 2008.||It was released on 19 October 2011.|
|4.||The API level in Android 1.0 version is 1.||The API level in Android 4.0.1 version is 14.|
|5.||It did not have facial recognition.||Facial recognition (face unlock) was introduced 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 major user features were added in this version.|
|9.||It did not have voice recognition.||Better voice recognition (voice typing) was introduced in this version.|
|10.||Web browser allowed single tab in this version.||Web browser allowed up to 16 tabs in this version.|