Android started out in very simple beginnings. On November 5th, 2007, the Open Handset Alliance announced Android, a new mobile operating system that was founded on being open and available for any manufacturer to use.
Google was involved well before Android was ever even announced. In 2005, Google actually bought the company Android Inc which owned, you guessed it, and over the next two years, was worked on behind the scenes.
It wasn't until 2009 when Android made its big debut with the HTC Dream, a very, let's just say basic smartphone with an interface that made iOS and the iPhone look significantly better. Since then, the OS has taken the World by storm with an astounding 75% of world mobile market share.
Not bad for appearing in a phone for the first time just three years ago. Fast forward to almost the end of 2012 and things have advanced significantly. No longer are the days of single-core, 500MHZ processors and very low quality screens. Now, dual-core processors and HD screens are becoming standard with quad-core gaining more and more traction.
And even with the better hardware, Android itself has advanced considerably from the early days of 1.5 Cupcake to the latest 4.2 Jelly Bean which is a night and day difference. These past few years have been very exciting and as we move forward, they're going to get even more exciting.
Happy Birthday Android!