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Managing an OS 💻: Devices, Drives & Commands 💾🧩

In the previous post, we explored how the operating system keeps programs running smoothly and how background services support them. 👉 Processes & Services.

Now, in this part, we’ll move a step closer to the hardware side of things. You’ll learn how the OS detects and manages the devices you plug in, how it organizes and keeps track of your storage drives, and how simple command-line tools can help you control and troubleshoot your system more efficiently.

By the end, you’ll have a clear idea of how your computer talks to its devices, stores data, and responds to your commands — the foundation of every modern operating system.

Windows refers to all the hardware installed on your computer as devices. Managing these devices ensures that everything — from your mouse and keyboard to printers, webcams, and graphics cards — works as it should. In Windows 11, there are a few different ways to manage device settings:

  • Bluetooth & Devices App: For everyday needs like adding a new device, connecting Bluetooth accessories, or removing external peripherals, open Settings → Bluetooth & Devices. To get there, click the Start button → Settings → Bluetooth & Devices.
  • Device Manager: For deeper troubleshooting, Windows provides a more traditional hardware management tool called Device Manager.You can open it in several ways:
    • Through the Control Panel
    • By typing Device Manager in the Windows Search Bar
    • Or by using the Quick Access Menu (press Windows + X)

Device Manager is the place to go if a device isn’t detected or isn’t working properly. If there’s an issue, you might see a yellow circle with an exclamation mark (⚠️) on the device icon. From here, you can:

  • View or update driver details
  • Install or update drivers
  • Roll back a driver if a new update causes problems
  • Disable or uninstall a device

In short, Device Manager acts as your control center for all hardware components — helping you keep everything connected and functioning correctly.

💡 Tip: Before uninstalling or updating a driver, it’s a good idea to create a system restore point. This ensures that if something goes wrong, you can easily roll your system back to a working state.

Having reliable, long-term storage for your data is one of the most important features of any desktop or laptop computer. Hard drives — whether HDDs (Hard Disk Drives) or SSDs (Solid-State Drives) — are responsible for storing all your files, applications, and system data. Windows helps you manage this storage using a built-in utility called Disk Management.

  • Opening Disk Management: There are many ways to open it, but the easiest is through the Quick Access Menu — press Windows + X and select Disk Management from the list.
  • Managing Different Drives: Disk Management doesn’t care whether the drive is HDD or SSD — it can handle both. You’ll also see any removable drives (like USBs) or optical drives (like DVD drives) listed in the bottom pane of the window.
  • Preparing a Drive: Before a hard drive can store data, it needs to be prepared.
    • Create a Partition: Think of partitions as walled-off sections of your disk space — each section can be used to store different types of data. A drive can have multiple partitions.
    • Format the Partition: Once a partition is created, it must be formatted with a file system (such as NTFS) so the OS knows how to store and retrieve files.

After a drive is partitioned and formatted, it’s called a volume — and it’s ready to store your data!

⚠️ Warning: Deleting a partition or formatting a volume will erase all data on it. Always double-check before performing these actions.

💡 Tip: If you’re unsure which drive or partition you’re working on, right-click the drive and check Properties first. It’s an easy way to confirm before making changes.

Modern operating systems give us beautiful graphical interfaces (GUIs) — the wallpapers, icons, menus, and colorful windows that make interacting with a computer so easy. But before GUIs existed, early operating systems relied entirely on something called the Command Line Interface (CLI) — often called the command line or console.

This interface was text-based, meaning you typed every instruction instead of clicking buttons. Users entered commands to open applications, change settings, or manage files—and the system responded with text-based output. It wasn’t as easy to use as a GUI, but it got the job done efficiently.

Even today, you can still use the command line on most operating systems — and many experienced administrators still prefer it for its speed and precision.

In Windows, accessing the command line (also known as Command Prompt) is simple:

  • Click the Start menu or press Windows key.
  • Type cmd in the search box.
  • Press Enter to open it.

You’ll see a black window with a blinking cursor — ready for your commands.

If you’re unsure what to type, don’t worry! You can get help on any command. For example:

help attrib

This will show details about the attrib command and how it works.

When you’re done, just type:

exit

and press Enter to close the Command Prompt.

💡 Tip:
The Command Prompt might look intimidating at first, but learning a few basic commands (like dir, copy, or ping) can make you feel like a true system pro!

Managing devices, drives, and using the command line are essential parts of understanding how an operating system truly works behind the scenes. While the GUI makes things simple and visual, tools like Device Manager, Disk Management, and the Command Prompt give you deeper control and flexibility.

This article is part of the Operating Systems Series — where we explore how OS power and shape the world of computing. If you’d like to know what operating systems are and why they matter, check out the main article: 👉 — Operating Systems: The Hidden Power