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Questions and Answers
What significant announcement did Google make in November 2007 regarding Android?
What significant announcement did Google make in November 2007 regarding Android?
Which layer of the Android architecture is responsible for running all Android applications?
Which layer of the Android architecture is responsible for running all Android applications?
What replaced the Dalvik Virtual Machine in Android 5.0?
What replaced the Dalvik Virtual Machine in Android 5.0?
What core function does the Linux Kernel provide to the Android OS?
What core function does the Linux Kernel provide to the Android OS?
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Which feature was included in the first official release of Android in September 2008?
Which feature was included in the first official release of Android in September 2008?
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What is the primary purpose of a mobile operating system?
What is the primary purpose of a mobile operating system?
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When was Android officially launched?
When was Android officially launched?
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Which statement about Android OS is true?
Which statement about Android OS is true?
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What was the original focus of Android, Inc. when it was founded in 2003?
What was the original focus of Android, Inc. when it was founded in 2003?
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Which of the following describes the app store associated with Android?
Which of the following describes the app store associated with Android?
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Which of these mobile operating systems has the highest market share as of 2023?
Which of these mobile operating systems has the highest market share as of 2023?
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What major event happened in 2005 regarding Android?
What major event happened in 2005 regarding Android?
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Which feature is NOT typically managed by a mobile operating system?
Which feature is NOT typically managed by a mobile operating system?
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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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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.
