Computer Basics: Getting to Know Your Computer's OS
Getting to know your computer's OS

Now that you know the absolute basics of using a computer, it's time to learn more about your computer's operating system (OS). We'll be talking about the two most common operating systems in this lesson: Microsoft Windows.

Watch the video below to learn the basics of using Windows.

Getting to know the interface

PCs use a graphical user interface (GUI), and they each have their own look and feel. The interactives below will introduce you to the Windows interfaces.

Click the buttons in the interactive below to learn more about the Windows interface.

Windows 10 Desktop Interface
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All about your Computer's File System

No matter which operating system you use, your computer uses folders to organize all of the different files and applications it contains. Folder icons on your computer are designed to look like file folders full of documents or pictures.

Folders on the desktop

Each operating system has its own file system, which helps you find your folders and files. If you have a Windows PC, you'll use the File Explorer (also known as Windows Explorer). Here, we'll talk about the basic functions that are common to all computer file systems.

To learn more about PC file systems, take a look at the Working with Files lesson in our Windows Basics tutorial.

Opening your Computer's File System

Whether you're using a PC, the file system icon will be on the toolbar. On a PC, the File Explorer icon looks like a folder, as in the image below.

File Explorer

In both operating systems, you can also open the file system by clicking a folder from your desktop.

Basic Navigation

Whether you're using File Explorer or Finder, basic navigation will work the same way. If you see the file you want, you can double-click it with your mouse. Otherwise, you can use the Navigation pane on the left side of the window to select a different location.

Documents folder view

Deleting Files

Windows use a Recycle Bin—to prevent you from accidentally deleting files. When you delete a file, it is moved to the Trash can. If you change your mind, you can move the file back to its original location.

moving a file to the recycle bin

If you want to permanently delete the file, you will need to empty the Trash or Recycle Bin. To do this, right-click the icon and select Empty.

emptying the recycle bin

Opening Files and Applications

Each application on your computer has a group of file types—or formats—it is able to open. When you double-click a file, your computer will automatically use the correct application to open it. In our example, we're opening a Microsoft Word document (Cover Letter), which will open in Microsoft Word.

opening a file

However, there may be times you may want to open an application directly, instead of just opening a file.

  • To open an application in Windows, click the Start button, then select the desired application. If you don't see the one you want, you can click All Programs/All Apps to see a full list, scroll through the application list in Windows 10, or simply type the name of the application on your keyboard to search for it.
  • opening Microsoft Edge

    Adjusting your Computer's Settings

    When you start using a new computer, you may want to begin by adjusting the computer's settings. Adjusting your settings can range from simple tasks such as changing your desktop background to more advanced tasks like adjusting your security or keyboard settings.

    • In Windows 11, click the Start button, then select Settings.
    • opening the Settings app on Windows 10

      Shutting Down your Computer

      When you're done using your computer, it's important to shut it down properly.

      • To shut down Windows, click the Start button, then select Shut down from the menu (in some versions, this may say Turn Off Computer or look like the power symbol).
      • power options

      FAQs

      What is Windows?

      Windows is an operating system developed by Microsoft. It is used on many computers from brands like Dell, HP, and Lenovo, and allows users to run applications and manage files easily.

      What is a GUI?

      GUI stands for Graphical User Interface. It allows you to interact with the computer using icons, menus, and a mouse instead of typing commands.

      Why do I have to empty the Recycle Bin?

      Deleted files are stored in the Recycle Bin temporarily. To permanently delete them and free up storage space, you must empty the Recycle Bin.

      How do I find a lost program on my computer?

      Click the Start button and type the program name in the search bar. Windows will quickly locate it for you.

      Why shouldn't I just unplug my computer to turn it off?

      Unplugging the computer can cause data loss and system damage. Always use the proper "Shut Down" option to safely close programs.

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Amit Kumar Giri

About the Author

Amit Kumar Giri

Founder of Utkal IIT Education. I created this platform to help students learn computer skills in a simple and practical way.

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