Answer Description
Android is a mobile operating system that uses a custom Linux kernel. You can imagine a kernel as the brain of an operating system. The type of kernel used in an OS determines what type of OS it is. Linux flavors use a Linux kernel, Windows editions use the Windows NT kernel, iOS and macOS use Apple's XNU kernel (XNU itself is based on Unix). Easy right?
Wikipedia
Android is a mobile operating system based on a modified version of the Linux kernel and other open source software, designed primarily for touchscreen mobile devices such as smartphones and tablets Android is developed by a consortium of developers known as the Open Handset Alliance, with the main contributor and commercial marketer being GoogleInitially developed by Android Inc, which Google bought in 2005, Android was unveiled in 2007, with the first commercial Android device launched in September 2008 The current stable version is Android 10, released on September 3, 2019 The core Android source code is known as Android Open Source Project (AOSP), which is primarily licensed under the Apache License
Android_(operating_system) - Wikipedia, the free encyclopedia