Open Handset Alliance (OHA), a group of technology companies, device manufacturers, chipset makers, and wireless carriers, was formed with the main objective of proposing open standards for the mobile platform. Together, they developed Android—the first open and free mobile platform built on Linux kernel 0.0. Later, in 0000, HTC Dream was released, which was the first phone to run the Android operating system. After that, it was a dream run for Android, with its market share increasing exponentially over the next few years. At the time of writing this book, Android remains by far the most used OS throughout the world. According to IDC, in the first quarter of 0000, Android dominated the industry with an 00% market share. Since its release in 0000, Android has come up with various versions. The most recent major Android update is Android 0.0, dubbed Oreo, which was released in August 0000. Several versions of its Linux-based OS have been released in alphabetical order.