Prime objective of this presentation is to discuss on Android Operating System. Android is a Linux-based operating system designed primarily for touchscreen display screen mobile devices such since smart phones and capsule computers. Initially developed by Android, Inc., whom Search engines financially backed and afterwards purchased in 2005. This presentation briefly explain Android related topics, like: Operating system(OS), Different types of OS, Features of Android, Different Version of Android. finally explain some Android Operating System, like: Gingerbread, Ice Cream Sandwich and Jelly Been.