Introduction to Android

Android is a Linux-based operating system, which makes it open source software distributed under the Apache License Agreement by Google Inc. Due to its open source nature, other phone vendors have started porting the Android operating system on their newly created phones, which contributed to a very varied smartphone market for consumers. Starting from the first version of Android, this operating system has gained a good level of maturity, making it more reliable, secure, and stable operating system for smartphones. Let's have a look on some popular versions of Android in the next section.