Android is a Linux-based operating system originally developed by Android Inc. and now maintained by Google. It was designed for use in mobile devices like smartphones and tablets. Some key points about Android include: - It is an open source operating system with over 400,000 apps available. - Google acquired Android Inc. in 2005 and formed the Open Handset Alliance in 2007 to further develop Android. - It allows for multitasking of multiple apps simultaneously and supports optimized graphics. - Advantages include being open source, allowing multitasking, easy notifications, and diverse phone options. Disadvantages include sometimes needing internet, potential for malware, and battery drain.