/q? word=ANDROID& ct=17& pn=& tn=ikaslist& rn=1& lm=& Fr=search for help editing encyclopedia business cards

Android is an open source operating system based on Linux, which is mainly used in portable devices. At present, there is no unified Chinese name, and many people in Chinese mainland use Android (unofficial) or Anzhi (official). The Android operating system was originally developed by Andy Rubin, and initially mainly supported mobile phones. In 25, it was acquired and funded by Google, and open handset alliance was established to develop and improve it, and gradually extended to tablet computers and other fields. The main competitors of Android are Apple's iOS and RIM's Blackberry OS. In the first quarter of 211, the global market share of Android surpassed Saipan system for the first time, ranking first in the world. According to the data in November 211, Android accounted for 52.5% of the global smartphone operating system market, and the market share in China was 58%.

Chinese name: Android, Anzhi

mbth: Android

Developer: Google/ Open Handheld Device Alliance

Publisher: Google

Release date: September 23rd, 28

Programming language: C/C++ (bottom layer) Java, etc. (application layer)

Source mode. Open source)

package type: APK

supported platforms: ARM, MIPS, X86

kernel class: monolithic kernel (Linux)

directory

name source

built-in service

open handheld device alliance

version record naming rules

release version

development history

system architecture application (part)

middleware

hardware abstraction layer.

naming rules for version records

release version

development history

system architecture application (part)

middleware

hardware abstraction layer

kernel

security permission mechanism

start editing the name of this paragraph Source

The word p>Android first appeared in French writer Auguste Villiers de L. He named the machine that looks like a person Android.

Editing the built-in services in this paragraph

Google Mobile Service (English: Google Mobile Service) is a service of Google, which is referred to as "GMS" for short, and refers to letting users use Google search, Google Maps, Gmail, YouTube, Android Market and other Google service products by using mobile phones or other mobile devices. Google embeds Google Mobile Service (GMS) into android mobile phone system, and gives different degrees of authorization to Android mobile phone manufacturers. GMS is the soul of Android operating system. Most users use Android phones just to use Google services.

Edit this paragraph Open Handheld Device Alliance

The Open Handheld Device Alliance is a global alliance organization announced by Google Inc. on November 5, 27. This alliance will support the mobile phone operating system or application software released by Google, and develop the open source code of Android system. The Open Handheld Device Alliance includes mobile phone manufacturers, mobile phone chip manufacturers and mobile operators.

Edit this version record

Naming rules

The naming method that p>Android uses dessert as the code name of their system version began when Andoird 1.5 was released. As the representative of each version, the size of dessert is getting bigger and bigger, and then it is in the order of 26 letters: cupcakes, doughnuts, muffins, frozen yogurt, gingerbread, beehives, ice cream sandwiches

Release version

Remarks

Android 1.1

Android 1.5

Cupcake

(released in September 28. The main updates are as follows:

1. Shoot/play movies and support uploading to Youtube

2. Support stereo Bluetooth headsets and improve automatic pairing performance

3. The latest browser using WebKit technology, Support copy/paste and search in the page

4. GPS performance is greatly improved

5. Provide a virtual keyboard on the screen

6. Add a music player and photo frame widgets to the home screen

7. The application automatically rotates with the mobile phone

8. SMS, Gmail and sundial. The user interface of the browser is greatly improved. For example, Gmail can delete emails in batches < The photos taken can be directly uploaded to Picasa

1, and the incoming photo shows

Android 1.6

Donut

. On September 15th, 29, the 1.6(Donut Donut) version of the software development kit was released. The main updates are as follows:

1. Redesigned Android Market gesture

2. Support for CDMA network

3. Text-to-speech system

4. Quick search box

5. Brand-new camera interface

6. Power consumption of viewing applications

7. Support for virtual privacy.

9. Support OpenCore2 media engine

1. Add an easy-to-use plug-in for people with visual or hearing difficulties

Android 2./2..1/2.1

Eclair

(muffin) On October 26th, 29, version 2.(Eclair muffin) software development kit was released. The main updates are as follows:

1. Optimize hardware speed

2. Program

3. Support more screen resolutions

4. Improved user interface

5. New browser user interface and support Car Home 5

6. New contact list

7. Better white/black background. Improve Google Maps3.1.2

9, support Microsoft Exchange

1, support built-in camera flash

11, support digital zoom

12, improve virtual keyboard

13, support Bluetooth 2.1

14, and support the design of dynamic desktop

Android 2.2/2.2. The main updates are as follows:

1. The overall performance has been greatly improved

2. 3G network * * * enjoys functions.

3. Flash support.

4. App2sd function.

5. Brand-new software store.

6. Development of more Web application API interfaces.

Android 2.3

Gingerbread

(gingerbread) On December 7, 21, version 2.3(Gingerbread) software development kit was released. The main updates are as follows:

1. New garbage collection and optimized handling events have been added

2. Native code can directly access input and sensor events, EGL/OpenGL ES and OpenSL ES.

3. New management window and life cycle framework.

4. Support VP8 and WebM video formats, and provide AAC and AMR broadband coding. Provides new audio effects

5, supports front camera, SIP/VOIP and NFC (Near Field Communication)

6, simplifies interface, improves speed:

7, faster and more intuitive text input:

8, one-click text selection and copy/paste:

9, improved power management system:

. New application management mode:

Android 3.

Honeycomb

February 2, 211, The main updates of version 3.(Honeycomb) are as follows:

Optimized for tablets

Newly designed UI enhanced web browsing function

N-App Purchases function

Android 3.1

Honeycomb

was announced at the Google I/O Developers Conference on May 11th, 211. The main updates of the version are as follows:

Honeycomb Honeycomb (improved 3.BUG)

optimized Gmail email address;

fully support GoogleMaps

Merge the Android mobile phone system with the tablet system again to facilitate the developers.

the task manager is scrollable and supports USB input devices (keyboard, mouse, etc.).

supports Google TV. It can support the changes of XBOX 36 wireless handle

widget support, and it is easier to customize the screen widget plug-in.

Android 3.2

Honeycomb

was released on July 13th, 211. The version is updated as follows:

Support for 7-inch devices

Introduction of application display zoom function

Android 4.

Ice Cream Sandwich

was released in Hong Kong on October 19th, 211, and the

4.(Ice Cream Sandwich) version is mainly updated as follows:

1.

3. Screenshot function

4. More powerful picture editing function

5. The self-contained photo application is comparable to Instagram. You can add filters and photo frames for 36-degree panoramic shooting, and photos can be sorted according to location

6. Gmail adds gestures and offline search functions, which makes the UI more powerful.

7. New function People: With contact photos as the core, the interface emphasizes sliding rather than clicking, and integrates communication tools such as Twitter, Linkedin and Google+. It is expected to support users to customize and add third-party services.

8. Add a traffic management tool to specifically check the traffic generated by each application.

9. Running programs can be switched like computers.

1. Face recognition function

11. System optimization, higher speed

12. Support for virtual buttons. Mobile phones can no longer have any buttons

13, and more intuitive program folders:

14, common for tablet computers and smart phones

15, support for larger resolution

16, optimized drivers specially written for dual-core processors

17, brand-new 18, enhanced copy and paste function

19, and voice function

29. More abundant data transmission function

22, more sensors to support

23, keyboard for speech recognition:

24, brand-new 3D driver, improved game support

25, brand-new Google electronic market

26, enhanced desktop plug-in customization

Android N.n

Jelly Bean

.

Edit the development history of this paragraph

In p>25, Google acquired Android, a high-tech enterprise established only 22 months ago. On November 5, 27, Google officially showed the Android operating system to the outside world. On November 5th, Google established the Open Handheld Device Alliance with 34 mobile phone manufacturers, software developers, telecom operators and chip manufacturers. On May 28th, 28, Patrick Brady presented the Android HAL architecture diagram at the Google I/O conference. On August 18th, Android was approved by the Federal Communications Commission. On September 22nd, Google officially released the first Android phone-HTC G1. On September 23rd, Google released Android1.. On September 24th, the global industry expressed that it was not optimistic about the Android operating system, and claimed that Android would be shut down by Google in one year at most. On April 3th, 29, Android1.5 was officially released. On May 1th, HTC G1 and HTC G2 sold well in the market, becoming the most popular models after iPhone. On September 25th, Android1.6 was officially released. On September 29th, HTC Hero G3 became the most popular model in the world. On October 28th, the Android 2. smartphone operating system was officially released. On November 1th, due to the popularity of Android, the first malicious spyware, Mobile Spy, appeared on the Android platform. This program will automatically record any information entered by users and send it to the hacker's mailbox, and can also video record all the operation processes of users. On January 7th, 21, Google released its first self-owned brand mobile phone: Nexus one(HTC G5). In January, there was a conflict between Google and the Linux Foundation over Google's modification of the Linux kernel.