Evolution of the Android Operating System Vince Marchillo

Table of Contents ● What is Android? ● Version History ● Design Specs ● Strengths and Weaknesses ● Development Resources

What is Android? ● Operating System built specifically for mobile devices ● Google buys original developers, Android Inc., in 2005 ● Currently being developed by the Open Handset Alliance

Open Handset Alliance Members ● Sprint ● T-Mobile ● Acer ● Samsung ● Pantech ● LG ● Arm ● Atheros ● Intel ● MIPS Technologies, Inc ● Kyocera ● Lenovo ● Sharp ● Toshiba

Android 1.0 ● Code Named Astro ● Released Sept. 23, 2008 ● Google Maps with Driving Directions ● Gmail Synchronization ● Web Browser ● Android Market ● Youtube Player ● Status Bar Notifications

Android 1.1 ● Code Named Bender ● Released February 29, 2009 ● Mostly Bug Fixes ● Some API Changes ● Google Maps Displays Detailed Reviews When The User Clicks On A Business

Android 1.5 ● Code Named Cupcake ● Released April 30, 2009 ● Support For Widgets ● Predictive Text ● Auto Rotation Option ● Video Recording and Playback in MPEG-4

Android 1.6 ● Code Named Donut ● Released September 15, 2009 Android Video

Android 2.0/2.1 ● Code Named Eclair ● Released October 26, 2009 ● New Camera Features (Flash, Digital Zoom, Macro Focus, etc.) ● Multi-Touch Support ● Live Wallpapers ● More Screen Sizes Supported

Android 2.2 ● Code Named Froyo ● Released On May 20, 2010 ● Implemented JIT Compilation ● Android Cloud To ● Device Messaging (C2DM) ● WiFi Hotspot Capabilities ● Support For Adobe Flash

Android 2.3 ● Code Named Gingerbread ● Released December 6, 2010 ● Support For Near Field ● Communication ● Support For Multiple Cameras ● Enhanced Copy/Paste Functionality ● Support For Extra Large Screens

Android 3.0 ● Code Named Honeycomb ● Released on February 22, 2011 ● Tablet-Only Upgrade ● Added Support For Multi-core ● Processors ● Redesigned Keyboard For Larger Displays ● Browser Tabs Instead Of Multiple Windows

Android 4.0 ● Code Named Ice Cream Sandwich ● Released on October 19, 2011 ● Enhanced Speed and Performance ● Access Apps Directly From the Lock Screen ● Built-In Photo Editor ● Improved Camera App ● New Tabbed Web Browser

Android 4.0 ● 1080p Recording ● Face Unlock ● Real Time Speech-To-Text ● Dictation ● Integrated ScreenShots

Design

Strengths ● Easy to download and install non-marketplace apps ● Open Source code means that it can be used and built upon by anyone ● Removable battery allows for easy replacement ● Spell Checker offers multiple selections when inputting text

Weaknesses ● Fragmentation of the Android Market ● Development of Android apps can be very time consuming, as you have to make sure that your app will work across all versions of the OS. ln k

Resources developer.android.com ndroid.article.html