Operating System
The OS works similarly to a restaurant, where the hardware is like the kitchen, tables, chefs, and utensils. Meanwhile, the OS is the restaurant’s manager. The key purpose is to manage resources, handle tasks, verify orders, and ensure every customer gets what they want without chaos.
The operating system is the brain of your computer. It is not a physical part of the computer, but it controls and manages hardware and provides services for application software. For more information, this article offers you a deeper insight into the OS.
What is the operating system in a computer?
An operating system is a software mechanism that bridges the hardware and the user. It helps users interact with the system and provides the computer's resources, like the CPU, memory, storage, and input or output devices. Without an OS, the computer can’t work or run applications. It won’t be able to control hardware without directly writing low-level code.
This makes the operating system the key part of a computer. It interprets your action, and the OS translates it into a coding language so the system can understand the task. Without the OS, applications will find it difficult to communicate with the hardware effectively. Moreover, here are some key functions of the OS:
Process management
The operating system is responsible for running programs on the computer. It handles the creation, execution, suspension, and termination of processes. Also, it helps the CPU to work between multiple tasks, known as multitasking. Everything that it does is to ensure the process gets enough CPU time and runs effectively without interfering with other operations.
Memory management
One of the main tasks of an operating system is controlling and allocating Random Access Memory (RAM). When you launch a program, the system assigns some of its memory to run it. It also assures that no application accessing memory belongs to another. This will prevent crashes or data corruption due to overlapping memory usage.
File system management
A computer uses data for the OS to work properly. The role of the operating system is to manage files and directories and keep track of where each file is stored on disk. This way, you can create, read, write, move, and delete data. In addition, the OS also manages file permissions and access rights. You can limit the number of users or applications for accessing a certain file.
Device management
When you are using a computer, you are going to need additional devices, like a keyboard, mouse, monitor, and others. The operating system has special software called device drivers that bridge between the devices and hardware. It acts as a translator between the OS and the device. This perk can prevent any conflicts when multiple processes try to use the same device.
User interface
Everything you see on your computer’s monitor is from the work of an operating system. It provides a Graphical User Interface (GUI) or a Command-line Interface (CLI). The point of this feature is to make it easier for people to access, especially for non-technical users. This includes desktop icons and the start menu, which is part of the OS’s user interface.
Security and access control
The safety of your computer is important. There are risks like unauthorised access to programs and data. An operating system can prevent this issue from happening. You can manage user permissions to give access to modify a certain file and setting.
5 kinds of operating systems
There are many kinds of OSs. This is because every computer and user has different needs. People design it to reach specific goals, with use cases, and hardware in mind. For example, desktops and smartphones require an OS to operate, but they have different kinds. Here are the most popular operating systems nowadays:
- Microsoft Windows: Many personal computers, laptops, tablets, and servers use this system. Microsoft made this into a user-friendly interface, with wide software and hardware compatibility, which supports video games and business applications.
- macOS: Made by Apple, you can only find it inside their desktops and laptops, such as MacBooks and iMacs. It provides a sleek interface, strong integration with other Apple devices (iPhone, iPad, or iWatch), and is often used for creative tasks (video, music, and design).
- Linux: Different from the other two above, this one is an open-source operating system, meaning it has free access. People use it because it is highly customisable, secure, and has many distributions. This is why many developers and IT professionals use Linux for their tasks. Some of their example distributions are Ubuntu, Kali Linux, and Linux Mint.
- Android: This is one of the products based on Linux and developed by Google. Many phones and tablets use Android. Also, you can find it in smart TVs and wearables. It has traits such as a touch-friendly interface, supports millions of apps, and is highly customisable.
- iOS: Similar to Android, this operating system by Apple is for iPhones and iPads (earlier versions). It offers a secure, fast, and optimised experience for Apple hardware. Plus, you can integrate this system with macOS and other Apple devices.
Answer: An operating system is software that manages a computer’s hardware and provides the environment for applications to run.
Answer: Drivers allow the operating system to communicate properly with hardware devices like printers, graphics cards, and keyboards.
Answer: Windows and macOS are proprietary systems designed for specific hardware ecosystems, while Linux is open-source and highly flexible across many devices.
