Mobile Operating Systems: Android Overview
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Questions and Answers

What significant announcement did Google make in November 2007 regarding Android?

  • Android would have limited compatibility with other systems.
  • Android would be a paid platform.
  • Android would exclusively focus on web applications.
  • Android would be an open-source platform. (correct)
  • Which layer of the Android architecture is responsible for running all Android applications?

  • Linux Kernel
  • Application Framework
  • Android Runtime (ART)
  • Application Layer (correct)
  • What replaced the Dalvik Virtual Machine in Android 5.0?

  • Native C/C++ Libraries
  • Linux Kernel
  • Application Framework
  • Android Runtime (ART) (correct)
  • What core function does the Linux Kernel provide to the Android OS?

    <p>Memory management and process management (C)</p> Signup and view all the answers

    Which feature was included in the first official release of Android in September 2008?

    <p>Access to Google services like Gmail and Maps (D)</p> Signup and view all the answers

    What is the primary purpose of a mobile operating system?

    <p>To manage hardware and software resources (C)</p> Signup and view all the answers

    When was Android officially launched?

    <p>September 23, 2008 (C)</p> Signup and view all the answers

    Which statement about Android OS is true?

    <p>It is based on Linux and is open-source. (C)</p> Signup and view all the answers

    What was the original focus of Android, Inc. when it was founded in 2003?

    <p>Developing an advanced operating system for digital cameras (B)</p> Signup and view all the answers

    Which of the following describes the app store associated with Android?

    <p>Google Play Store and third-party app stores (A)</p> Signup and view all the answers

    Which of these mobile operating systems has the highest market share as of 2023?

    <p>Android (D)</p> Signup and view all the answers

    What major event happened in 2005 regarding Android?

    <p>Google acquired Android, Inc. (A)</p> Signup and view all the answers

    Which feature is NOT typically managed by a mobile operating system?

    <p>Game compatibility (D)</p> Signup and view all the answers

    Flashcards

    What is Android OS?

    Android OS is a mobile operating system designed by Google. It's open-source, meaning developers can freely modify and distribute it. Android powers billions of devices worldwide, from smartphones and tablets to smart TVs and wearables.

    What is the Application Layer in Android?

    The Application Layer is the top layer of the Android architecture where all apps run. It includes pre-installed system apps like the Phone, Contacts, and Camera, as well as user-installed apps downloaded from the Play Store.

    What is the Android Framework?

    The Android Framework provides a set of APIs (Application Programming Interfaces) that developers use to create apps. It offers high-level services and tools for managing device resources and functionality.

    What are Native C/C++ Libraries in Android?

    Native C/C++ Libraries are a collection of essential features written in C and C++. They provide core functionality for apps and the OS, such as media handling, web browsing, graphics rendering, and databases.

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    What is the Android Runtime (ART)?

    Android Runtime (ART) is the execution environment where Android apps run. It's responsible for compiling apps into machine code during installation, making them run faster and more efficiently.

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    Mobile Operating System (OS)

    A specialized software that manages hardware and software resources on mobile devices like smartphones and tablets. Its primary functions include running applications, managing resources, providing security, and facilitating communication.

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    Resource Management in Mobile OS

    Resources managed include memory, CPU, and storage. This ensures efficient allocation and use of these resources.

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    Security in Mobile OS

    Features include app permissions, data encryption, and authentication management. This ensures secure device operation and protection against unauthorized access.

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    Communication Management in Mobile OS

    The OS manages communication over the network, handling phone calls, messaging, and internet connections.

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    User Interface in Mobile OS

    Includes user-friendly interactions such as touch gestures and visual elements. This ensures intuitive and easy navigation.

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    Android OS

    Developed by Google, open-source, based on Linux. It holds the largest market share globally, surpassing 70%, with apps available on Google Play Store and other third-party stores.

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    iOS

    Apple developed it, and it's closed-source and proprietary. It has a significant market share around 28% globally. Apps are only available through the Apple App Store.

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    HarmonyOS

    Developed by Huawei, it's known for its own app store, Huawei App Gallery.

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    Study Notes

    Mobile OS: Android

    • Android is a mobile operating system developed by Google.
    • Primarily designed for touchscreens.
    • Android is open-source, based on Linux.
    • Launched in September 2008.
    • Android 1.0 was the initial version.
    • Android currently holds over 70% global market share.
    • Google Play Store is the primary app store.

    Common Mobile Operating Systems

    • Android (Google, September 2008, Open-source, based on Linux, Over 70% market share, Google Play Store)
    • iOS (Apple, June 2007, Closed-source, proprietary, Roughly 28% market share, Apple App Store)
    • HarmonyOS (Huawei, September 2019, Huawei App Gallery)

    Android OS Architecture

    • Operating System (OS): Specialized software, manages hardware and software resources.
    • Resource Management: Manages memory, CPU, and storage.
    • Security: Manages app permissions, data encryption, and authentication.
    • Communication Management: Handles phone calls, messaging, and internet connections.
    • User Interface: Includes touch controls.

    Android History

    • Android, Inc. founded in 2003.
    • Google acquired Android Inc. in 2005.
    • Announced as an open-source platform in 2007.
    • Android 1.0 released in September 2008.

    Android Applications

    • Application Layer: The top layer where Android apps run.
    • Pre-installed apps: System apps like Phone, Contacts, Browser, Camera.
    • User-installed apps: Downloaded from various app stores—including Google Play Store(and third-party stores).
    • Application Framework: Provides APIs for app developers. High level building blocks are provided; manages device functions and resources.

    Android Libraries and Runtime

    • Native C/C++ Libraries: Essential functionality for Apps and the OS (e.g., Media Libraries).
    • Android Runtime (ART): The execution environment for Android apps. Now the default (replaced Dalvik VM in 5.0).
    • Linux Kernel: Foundation of Android's architecture; manages fundamental system services (memory, process, security, network).
    • Core Libraries: Includes many crucial software components(e.g. Dalvik Virtual Machine/ART is used to run the code).

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    Related Documents

    Android OS Presentation PDF

    Description

    Explore the fundamentals of Android, a mobile operating system developed by Google. Learn about its architecture, market share, and comparison with other mobile OS like iOS and HarmonyOS. This quiz provides insight into the unique features and components that make Android prevalent in the mobile market.

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