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  • What an android system is and what it comprises. All

    Today, the name Android operating system has become synonymous with a handheld device which can show movies, allow one to talk to another person, send messages, pictures, emails, play games and let you stay in touch with everybody.

    Android is perhaps one of the most used Operating System cum framework available for what we call smartphones today. And it is poised to become an all-encompassing framework which will be used not only on simple hand held devices like smart phones but its uses will also be on HDTV’s, Automotive Infotainment systems. Any system which will require a simple, elegant and easy to develop User Interface might be built on Android framework.
    What is Android?
    Android is a Mobile Operating System, developed By Android Inc. and now, marketed by Google. Google and other members of Open Handset Alliance collaborated on Android development and release. Its software stack and framework is built on Linux kernel, which has been very instrumental in its seamless acceptance as an OS of choice in Mobile phones. Android OS consists of over 12 million lines of code written in C / C++ / Java and XML. Android can be visualized basically as a framework of C C++ and Java libraries based on a Linux kernel. Because of this and the fact that Java apps can be effortlessly built through SDK’s the applications are portable on all mobile devices.
    The Android system consists of 3 layered stacks:
    1. Application built in Java running on Dalvik Runtime Engine
    2. System Library written on C and C++
    3. Kernel based on Linux
    Application Layer.
    Java language was chosen as the development language. There are a lot of mobile developers who are well versed in Java and hence can have a seamless transition to writing Mobile apps and widgets on Android powered Smart phones Java is a proven technology, portable on different software and hardware platform. Java is already available on majority of the mobile phones. Current Java on mobile (J2ME) have a lot of limitation, so major mobile phone company add in their own extension to the Java library, this makes portability of Java application on mobile more difficult. Normally Java was used to create Java games on mobile; many other applications are still build on the native OS and not on the Java layer. Sun has been pushing Java technology on mobiles for years, it was successfully deployed on most of the mobile phones, but lack of standardization made it difficult to reach the depths of Mobile phone market.
    Android has a very reach and standardized set of API’s and libraries, developers can use those API to develop games and applications, integrate well into mobile phones, and Java will make Android application portable on all (Android) mobile phones. The Java program doesn’t run directly on Android, it is converted into Dalvik byte code. Basically Android can make any app run as long as it can be converted to Dalvik byte code.
    The System Libraries.
    The system libraries on Android mainly built on C and C++, so they are fast and efficient. Since the library runs on top of the Linux kernel, there are a lot of drivers and libraries available which can be customized as per the vendor’s requirement.
    The Linux Kernel.
    The Linux kernel was chosen because it was proven to be stable and powerful. Linux has good memory management, process management and already build in with many other functions like TCP/IP networking which is necessary for an operating system (especially you need it to connect to data network on your mobile). For a new hardware mobile manufacturer, the first thing to do for building an Android platform is to build the device driver on the Linux kernel, there should be a lot of developers around who have the know-how to build the software stack from scratch or customize it from the available software.
    Last edited by dann jayden; 03-16-2017, 05:48 PM.
    Thanks for using Tecno mobile

  • #2
    knowledge is power they say

    Comment


    • TamaraPosibi
      TamaraPosibi commented
      Editing a comment
      Yeah.
      Very true

    • omoalajah
      omoalajah commented
      Editing a comment
      So true

  • #3
    Cool info,thumbs up

    Comment


    • omoalajah
      omoalajah commented
      Editing a comment
      Thumps up.

    • missslimzy17
      missslimzy17 commented
      Editing a comment
      This is so nice

    • TamaraPosibi
      TamaraPosibi commented
      Editing a comment
      Really lovely

  • #4
    nice one

    Comment


  • #5
    knowledge is power.... thumbs up

    Comment


    • TamaraPosibi
      TamaraPosibi commented
      Editing a comment
      That's the word.
      Knowledge is truly power

    • omoalajah
      omoalajah commented
      Editing a comment
      This is so nice

  • #6
    This is good information. Thanks for sharing

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    • #7
      But why do people look down on android devices?

      Comment


      • missslimzy17
        missslimzy17 commented
        Editing a comment
        I no know for them o

      • TamaraPosibi
        TamaraPosibi commented
        Editing a comment
        Most can't even afford the expensive ones o

    • #8
      Kudos, keep it up.

      Comment


    • #9
      very informative

      Comment


      • #10
        extremely informative. I have learnt a thing

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      • #11
        good

        Comment


      • #12
        Thanks for sharing

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      • #13
        Really love the post!

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        • #14
          The Linux Kernel name is funny though

          Comment


          • #15
            iNTERESTING

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