1.1 Introduction of Android

History, Concept and Features of Android

1. Back in October 2003, a person named Andy Rubin started a company called Android Inc. in Palo Alto, California, USA.
2. Google got interested and saw potential in what Android Inc. was doing. So, on August 17, 2005, Google acquired Android Inc. From that point, Android became a part of Google.
3. Some important people involved in Android Inc. were Andy Rubin, Rich Miner, Chris White, and Nick Sears.
4. Initially, Android was being developed for digital cameras, but because there wasn't much demand for camera software, they shifted their focus to smartphones.
5. Now, why is it called Android? Well, it's a nickname for Andy Rubin. His colleagues called him that because he was really into robots.
6. The big announcement came in 2007 when Google said they were working on something called the Android Operating System (OS). This got a lot of people excited because it meant there would be a new software for smartphones.
7. The first Android smartphone hit the market in 2008, made by a company called HTC. It was a big deal because it showed that Android was ready to compete with other smartphone systems like Apple's iOS.

So, from its humble beginnings in a small California town, Android has grown to become one of the most popular operating systems for smartphones worldwide.

 VersionCode nameAPI Level
1.5 | Cupcake | 3
1.6 | Donut | 4
2.1 | Eclair | 7
2.2 | Froyo | 8
2.3 | Gingerbread | 9 and 10
3.1 and 3.3 | Honeycomb | 12 and 13
4.0 | Ice Cream Sandwitch | 15
4.1, 4.2 and 4.3 | Jelly Bean | 16, 17 and 18
4.4 | KitKat | 19
5.0 | Lollipop | 21
6.0 | Marshmallow | 23
7.0 | Nougat | 24-25
8.0 | Oreo | 26-27 

Complete History of Android Versions

https://en.wikipedia.org/wiki/Android_version_history

Concepts of API Framework