Android
What is Android
Android is an open-source mobile operating system (OS).
It was initially developed by Android Inc., which Google acquired, unveiling Android in 2007. It is primarily designed for touchscreen mobile devices, including smartphones and tablets computers.
Android is the most used mobile OS since 2011, and supports the greatest number of smartphone applications. It was first developed using Java and now can be written in Kotlin, Java, and C++.
The code is open-source, meaning that everybody can download the software development kit and develop mobile applications using Android.