What is an Operating System? Goals & Functions of Operating System | Concept Simplified by Animation

00:05:28
https://www.youtube.com/watch?v=ACsLvXuaKxw

Summary

TLDRIn this video, the presenter introduces the concept and functions of an Operating System (OS), defining it as software that acts as an intermediary between users and hardware. The video elaborates on the necessity of an OS for simplifying interactions, emphasizing its goalsβ€”user-friendliness and efficiency. Key functionalities such as process management, memory management, device management, file management, network management, and security management are discussed in detail, showcasing how an OS ensures smooth operation and resource optimization in computing environments.

Takeaways

  • πŸ–₯️ An OS acts as an interface between users and hardware.
  • βš™οΈ It is necessary for simplifying complex hardware interactions.
  • πŸ‘¨β€πŸ’» Goals include user-friendliness and efficiency.
  • πŸ“ˆ Efficiently manages processes' execution and allocation.
  • 🧠 Handles memory allocation and deallocation for programs.
  • πŸ”Œ Manages connections and interactions with input/output devices.
  • πŸ“ Organizes and tracks files and directories in the file system.
  • 🌐 Coordinates network connections among devices.
  • πŸ”’ Enforces security to restrict unauthorized access.

Timeline

  • 00:00:00 - 00:05:28

    The video introduces the concept of operating systems (OS), defining them as system software that serves as an interface between users and computer hardware. The necessity of having an OS is emphasized through the analogy of operating a fan, where direct hardware manipulation is inefficient. The OS facilitates easy interaction with complex hardware by acting as a middleman, thus improving user efficiency.

Mind Map

Video Q&A

  • What is the purpose of an Operating System?

    The purpose of an OS is to act as an interface between the user and hardware, controlling program execution and simplifying user interactions.

  • Why is an OS necessary?

    An OS is necessary to efficiently manage complex hardware interactions without requiring users to understand machine language.

  • What are the main goals of an Operating System?

    The main goals include being user-friendly and efficient, providing maximum output with minimum input.

  • What does process management refer to in an OS?

    Process management involves handling the execution order and allocation of processes in the CPU.

  • How does an OS manage memory?

    An OS manages memory by allocating and deallocating RAM for programs and tracking memory usage.

  • What is device management in the context of an OS?

    Device management refers to managing input/output devices such as keyboards, mice, and printers.

  • What is file management in an OS?

    File management involves organizing and tracking files and directories within the file system.

  • What role does an OS play in network management?

    An OS manages network connections and devices facilitating device interconnectivity.

  • How does an OS ensure security?

    An OS enforces security by restricting access to authorized users and protecting system integrity.

  • Can you name some common Operating Systems?

    Common Operating Systems include Windows, Linux, Mac OS, and Android.

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  • 00:00:00
    hello guys welcome you all to this new
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    and exciting video on my channel making
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    IT simple you must have heard of Windows
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    Linux Mac OS Android what are these
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    these all are the OS or operating
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    systems today in this video we are going
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    to learn about what is an operating
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    system and what are its functions so
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    without wasting any time let's start the
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    video
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    [Music]
  • 00:00:32
    so what is an operating system let's
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    start with the definition of operating
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    system or OS
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    Nishan states that an operating system
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    is a system software that acts as an
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    interface between the user and the
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    computer hardware and controls the
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    execution of all kinds of program
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    so let's simplify the definition why do
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    we need two operating system as an
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    interface or middlemen between user and
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    machine or hardware hardware is more
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    complex we can directly interact with
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    the hardware using machine language but
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    it is not the effective or efficient way
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    let us consider an example let's
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    consider a fan we can use the fan on
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    different speed this can be done
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    directly using or manipulating the wires
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    but manipulating or making changes in
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    the wiring each time is not an efficient
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    way but with the help of buttons or
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    speed knob we can do it easily and
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    efficiently same is the case with the
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    hardware
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    in a computer we have different
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    hardware's there is memory processor
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    input/output devices if we say we want
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    to interact with all these Hardware
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    directly then we need to write a program
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    for each of the hardware every time we
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    need that hardware definitely this will
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    not be an efficient way of doing things
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    so as we saw in the example as speed
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    knob or buttons work and fans similar to
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    that OS or operating system works it
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    makes the interaction of user and the
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    hardware or the Machine easy and
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    efficient that's the reason we use an
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    operating system as an interface between
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    user and hardware
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    now let's take a look on goals of the
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    operating system
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    first is the operating system must be
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    user-friendly now what do we mean by
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    that it means that any user using the OS
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    must find it easy to interact with the
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    OS
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    let's consider an example we need to
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    print a file and there are two operating
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    systems in one OS you need to type a
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    command to execute the printing and in
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    another OS you just need to select the
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    file and click a print button people who
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    have the knowledge about the command can
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    select the first OS but majority of the
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    people will select the second OS as
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    working with graphical user interface
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    GUI is way more easy than typing the
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    command
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    so this must be the first goal of an
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    operating system that is it must be
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    user-friendly
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    second goal is being efficient when is
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    the operating system efficient operating
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    system must give maximum output with
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    minimum input operating system must also
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    use the resources efficiently it should
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    be fast and secure
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    now let's take a look on the
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    functionalities of the operating system
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    first is the process management so a
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    user will be working on number of
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    processes so which process will be
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    executed first or which process will be
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    executed for how much time allocating a
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    process to the processor or removing a
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    process from the processor all this is
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    managed by the operating system
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    second one is memory management for a
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    program or process to get executed it
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    requires memory the primary memory or
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    main memory is used in here that is RAM
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    random access memory so how much of
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    memory to be allocated to a process or
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    when to deallocate the memory from the
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    process or keeping the track of how much
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    memory is being used in how much of
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    memory is being free this all is managed
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    by the operating system
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    third one is input/output device
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    management we connect a number of
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    devices like keyboard mouse printer
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    scanner headset speakers mobiles pen
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    drives external hard disks etc keeping
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    track of all devices which process gets
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    the device for how much time managing
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    the connection of these devices all this
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    is managed by the operating system
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    fourth one is file management a file
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    system contains many files and
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    directories which are well organized
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    keeping track of information location
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    users status etc these collectively are
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    known as file system all this is managed
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    by the operating system
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    fifth one is network management nowadays
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    every device is connected with each
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    other in a network managing all network
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    connections and devices is done by the
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    operating system last one is the
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    security management as there are many
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    users in a system which user has
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    authority to access the device or
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    information who is authorized user
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    restricting unauthorized access or
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    activity this all is done by the
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    operating system
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    so in today's video we saw what is an
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    operating system what are the goals and
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    the functionalities of operating system
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    if you have any queries related to the
  • 00:05:04
    topic or any suggestions comment them
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    down below share the video with your
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    friends and subscribe my channel and
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    press the bell icon to get notified for
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    [Music]
Tags
  • Operating System
  • OS
  • User Interface
  • Process Management
  • Memory Management
  • File Management
  • Device Management
  • Network Management
  • Security Management
  • Efficiency