Introduction to Android

In this tutorial, you will learn about Android and how to develop apps easily with Android. Android is an open source mobile OS. Being a mobile OS, its foremost benefit is that it is used for developing apps for tablets, television, as well as wearable devices like a watch. Under Introduction to Android, we will also learn about history of Android.

Android has over two billion monthly active users, as announced by the search engine giant, Google on May 17, 2017


For creating apps in Android, an IDE will be used, which is known as Android Studio. The current version of Android Studio is 2.3.3,

Introduction to Android Studio

Android History

Android was initially developed by Android, Inc., which was bought by Google in 2005. The first commercial version, Android 1.0, was released in 2008.

Android latest release is Android 7.1 Nougat. The code names of android ranges from Alphabets A to N, with Android Nougat being the recent version.

Here’s the list of Android Versions, with code names, API Level, and release date. API Level is an integer value assigned to uniquely identify the framework API revision. Every integer value is offered by an Android version as shown below,

CodenameAndroid VersionAPI LevelVersion Release Year
Eclair2.15 - 72009
Gingerbread2.39 - 102010
Honeycomb3.0–3.2.611 - 132011
IceCream Sandwich4.0–4.0.414 - 152011
Jelly Bean4.1–4.3.116 - 182012
KitKat4.4–4.4.419 - 202013
Lollipop5.0–5.1.121 - 222014

In this tutorial, we will learn how to develop Android apps. The apps are uploaded on Google Play Store, wherein the users download, install and access them.

Here are the top 10 categories for apps on Google Play Store,

Top Android apps category

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