What is Android?

History Of Android .-

It's interesting to know the history and version of Android. Android code names are currently available from A to J, such as Aestro, Blender, Cupcake, Donut, Eclair, Froyo, Gingerbread, Honeycomb, Ice Cream Sandwitch, Jelly Bean, Kitatat and Lollipop. Let's understand the Android history in a sequence.
1) Initial stage, Andy Rubin founded Android Incorporation in Palo Alto, California, United States in October 2003.

2) On August 17, 2005, Google acquired Android Incorporation. it is in the subsidiary of Google Incorporation.

3) The main employees of Android Incorporation are Andy Rubin, Rich Minor, Chris White and Nick Sears.

4) Originally intended for the camera, but later only the camera was transferred to the smart phone due to the low market.
5) Android is the nickname of Andy Rubin, which has been given by co-workers due to their love for robots.

6) In 2007, Google announced the development of the Android OS.

7) HTC launched the first Android mobile  In 2008.

What is Android?

Before learning all the topics of Android, it's important to know what Android is like.
Android is a software package and tablet-based operating system for mobile devices such as tablet computers and smartphones.
It has been developed by Google and later OHA (Open Handset Alliance). Java language is used primarily for writing Android code, even if other languages can be used.
The goal of the Android Project is to create a real real world product that improves the mobile experience for end users.
There are many code names for Android such as Lollipop, KitKat, Jelly Bean, Ice Cream Sandwich, Froyo, Illiar, Donut etc.
What is the Open Handset Alliance (OHA)

It was founded on November 5, 2007 under the leadership of Google. It is committed to pursue open standards, provide services and deploy handsets using the Android platform.
Features of Android
After knowing what Android is, let's look at android features. Important features of Android are given below:
1) It is open-source.
2) Anyone can customize the Android platform.
3) There are many mobile applications that can be selected by the consumer.
4) It provides many interesting features like weather information, opening screen, live RSS (real simple syndication) feed etc.
It provides  for messaging (SMS and MMS), web browser, SQLite, connectivity (GSM, CDMA, Blue Tooth, Wi-Fi etc), media, handset layout etc.
Categories of Android applications
There are many Android apps in the market. Top categories are:
O entertainment
O device
O communication
O Productivity
O personalization
o Music and audio
O social
o Media and Video
o Travel and local etc.

Android Architecture
Android architecture or Android software stack is classified into five parts:

1. Linux kernel
2. Native library (middle ware),
3. Android Run time
4. Application framework
5. Applications

1) Linux kernel
It is the heart of the Android architecture that is present in the core of Android architecture. Linux kernel is something for device drivers, power management , memory management, device management, and resource access.

2) Original library
At the top of the Linux kernel, they have native libraries such as WebKit, OpenGL, FreeType, SQLite, Media, C Order Library (libc) etc.

WebKit Library is responsible for browser support, is for SQLite database, FreeType for font support, Media for running and recording audio and video formats.

3) Android runtime
In the Android runtime, there are core libraries and DVM (Dalvik virtual machines) responsible for running Android apps. DVM is just a like JVM but it is optimized for mobile devices. It consumes less memory and provides faster performance.

4) Android Framework
At the top of the Native Library and Android Runtime, the Android Framework is. The Android Framework includes the Android API like UI (user interface), telephony, resource, location, content provider (data) and package manager. It provides lots of classes and interfaces for Android application development.

5) Applications
At the top of the Android framework, there are applications. All apps such as home, contacts, settings, games, browsers are using the Android Framework, which uses Android runtime and libraries. The Linux kernel is used in Android runtime and native libraries.