Alpha
There were at least two internal releases of the software inside Google and the OHA before the beta version was released in November 2007. For the milestones in internal releases, names of fictional robots were chosen, with various releases code-named "Astro Boy", "Bender" and "R2-D2". Dan Morrill created some of the first mascot logos, but the current green Android logo was designed by Irina Blok.[8] The project manager, Ryan Gibson, conceived the confectionary-themed naming scheme that has been used for the majority of the public releases, starting with Android 1.5 "Cupcake".
Beta
The beta was released on November 5, 2007, while the software development kit (SDK) was released on November 12, 2007. The November 5 date is popularly celebrated
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Cupcake
The sugary code-names started with Cupcake, the first major update to Android, which dropped in May 2009. Cupcake was packed with new features, but perhaps the most significant was the virtual keyboard, which paved the way for button less blowers such as the HTC Magic.
Donut
In October 2009, we bit into Donut. It offered fewer major improvements, now that most of the key features were in place. But it brought Android to a new crowd, thanks to the addition of support for CDMA -- the technology used by some American mobile networks.
Eclair
Android 2.0 arrived, a mere month after Donut, in November 2009. Eclair reached out to the suits with support for Microsoft Exchange server, which most businesses use for email. Android 2.1 Eclair arrived in January 2010. It fixed some bugs and let app developers play with more features, but it didn't add any features for users.
Froyo
Arriving in May 2010, Froyo shook up the little green robot again. It introduced Flash, which has become one of the defining differences between Android and its main competitor, the