Operating Systems Overview Quiz
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Questions and Answers

What is the primary role of interrupts in an operating system?

  • To manage file system transactions.
  • To provide memory allocation.
  • To signal the execution of hardware tasks. (correct)
  • To manage user interfaces.

    • What does a user interface in an operating system primarily allow users to do?

  • Compile application code.
  • Interact with the system and applications. (correct)
  • Access device drivers.
  • Manage memory allocation manually.

    • What is the purpose of device drivers in an operating system?

  • To perform multitasking within the OS.
  • To compile code for execution.
  • To facilitate communication between the OS and hardware. (correct)
  • To manage application software.

    • Which component of an operating system is responsible for managing memory resources?

    <p>Memory Management</p> Signup and view all the answers

    How does the architecture of an operating system function as a bridge?

    <p>By linking user interfaces to hardware processing.</p> Signup and view all the answers

    What is the primary role of a device driver in an operating system?

    <p>To translate requests between the operating system and hardware.</p> Signup and view all the answers

    What is one function of user interfaces in operating systems?

    <p>To provide a means for users to interact with the computer.</p> Signup and view all the answers

    Which of the following best describes interrupt handling in operating systems?

    <p>It refers to the processing of requests to allow or deny resource use.</p> Signup and view all the answers

    In the context of memory management, what is a significant role of an operating system?

    <p>To track and allocate memory resources for running programs.</p> Signup and view all the answers

    When considering operating system architecture, what is one key difference between MS Windows and Linux systems?

    <p>Windows does not allow access to base code.</p> Signup and view all the answers

    Which aspect of operating systems ensures secure and intended operations by recognizing authorized user actions?

    <p>Authentication processes.</p> Signup and view all the answers

    What type of interactions are typically facilitated by the user interface of an operating system?

    <p>User engagement with applications and services.</p> Signup and view all the answers

    How do networks enable computers with different operating systems to share resources?

    <p>By utilizing a common protocol for communication.</p> Signup and view all the answers

    Which of the following accurately describes a graphical user interface (GUI)?

    <p>A visual interface for interacting with computer programs.</p> Signup and view all the answers

    What is the function of device drivers within an operating system?

    <p>To facilitate communication between the operating system and hardware.</p> Signup and view all the answers

    How does memory management function in an operating system?

    <p>By assigning memory space and managing access for programs.</p> Signup and view all the answers

    Which component of the operating system is primarily responsible for multitasking?

    <p>Kernel.</p> Signup and view all the answers

    What role does the kernel play in program execution?

    <p>It manages memory allocation and process interaction.</p> Signup and view all the answers

    What does the term 'shell' refer to in operating systems?

    <p>A user interface or command interpreter.</p> Signup and view all the answers

    When a program is interrupted, what happens to the currently running tasks?

    <p>They are suspended until the interrupt is handled.</p> Signup and view all the answers

    Study Notes

    International & Access Foundation Programmes

    • Included within the International & Access Foundation Programmes is a Computer Science Module.
    • This module, Part 8, covers Operating Systems.
    • This was delivered by Dr. Nevan Bermingham.

    Operating Systems

    • An operating system (OS) is a collection of programs managing computer hardware resources.
    • It provides services for application software.
    • The OS is essential software on any computer.
    • Users cannot run applications without an operating system.
    • Applications interact with the OS to access resources, such as memory and storage, and input/output devices like keyboards.

    Importance of Operating Systems

    • Programmers and systems designers rely on operating systems.

    Code Compilation for OS

    • Code is compiled for the OS.
    • The compiler is involved in this process.
    • Application software uses the OS to run code on the computer's hardware.
    • The OS interacts with hardware components (including storage, input, output, and network) and memory.

    Well Known Operating Systems

    • Windows Server
    • Windows 7
    • Google Chrome OS
    • iOS
    • Android
    • Solaris
    • Ubuntu
    • Linux (general category).
    • IBM AIX
    • Suse

    OS Popularity (Mobile & Desktop/Laptop)

    • Windows is the most popular desktop operating system (74.83%).
    • macOS, Unknown, and Linux follow in popularity order.
    • Chrome OS, FreeBSD, are less popular.
    • Android is the leading mobile operating system by device shipments (54.16% in 2015).
    • iPhone (iOS), Windows, and others follow in popularity by device shipments in 2015.

    OS Popularity (Worldwide)

    • Android and Windows hold the highest market share worldwide (2024).
    • iOS, OS X, and others follow in popularity order.
    • Data is presented as percentages across various timeframes (Jan 2009-Oct 2024)
    • Statistics indicate OS trends across various platforms, including desktop and mobile operating systems.

    Mobile OS Growth

    • Android, iOS, Windows, Blackberry, and Symbian are tracked in a graph of global smartphone sales growth

    OS Components

    • Kernel: Manages all system memory in use by programs; ensures programs don't interfere with each other's memory allocation; performs memory protection to limit each process's access to memory.
    • Program execution: Part of the OS that allows the program to use system resources and hardware.
    • Interrupts: Signals from processes or hardware prompting the OS to do something or take control.
    • User Interface (GUI): Presents a user-friendly interface such as macOS or Windows or a Command-Line Interface (CLI) like MS DOS.
    • Multitasking: Refers to running multiple programs simultaneously on the same computer via time-sharing using the Scheduler.
    • File system management: Organizes and manages data on disks. Files have names and attributes.
    • Device drivers: Allow interaction with hardware devices.
    • Networking: Allows computers to access resources over a network.
    • Memory Management: Controls allocation and access of memory among working applications.
    • Security: Processes user authentication and restricts access to different system resources.

    Linux Distros

    • List of popular Linux distributions (ex. Ubuntu, Fedora, Debian, etc.).

    Key Differences Between MS Windows and Linux

    • Access to base code: Linux has open-source code, while Windows is not open source.
    • Flavors of Variety: There are many versions of Linux, while Windows has fewer options.
    • Licensing: Linux has open-source licenses, while Windows has commercial licenses.
    • Command-line: Linux often uses command-line interfaces; Windows has graphical and command-line interfaces.
    • Run-level, Usability, Support, Updates, and Security: Windows and Linux differ in these aspects.

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    Related Documents

    Operating Systems PDF

    Description

    Test your knowledge on the essential functions and components of operating systems. This quiz covers topics such as interrupts, user interfaces, device drivers, memory management, and the architecture of operating systems. Sharpen your understanding of how operating systems operate and interact with hardware.

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