Linux is powerful, but it can feel like buying a car without seats, steering, or instructions.
You get the engine, but you have to assemble the rest yourself.
Ubuntu is what happens when someone takes that Linux engine and builds a complete, ready-to-drive car around it: seats, steering, dashboard, service schedule, and a support manual.
Technically, Ubuntu is an open-source, Linux-based operating system developed by Canonical. It is based on Debian and designed to run on desktops, servers, cloud instances, and even small devices.
That is why Ubuntu is often the first Linux distro people try and a popular choice that many hosting providers offer when you deploy a VPS.
In this guide, you will get to know what Ubuntu is, how it works, and whether it is the right operating system for your computer or server.
Ubuntu is a Linux-based operating system. You can install it on a computer instead of Windows or macOS, or alongside Windows, and use it for everyday work such as browsing, writing documents, watching videos, and coding. You can download and use it for free, and anyone can read and improve its open-source code.
The word “ubuntu” originates from Southern African languages and is commonly translated as “humanity toward others”. That is the idea behind the project: software that anyone can use, share, and help build.
An operating system is the main software on a computer. It operates between you, your apps, and the hardware.
Think of it as the manager of a busy restaurant. Customers (your apps) place orders, and the manager decides who gets the kitchen (the processor), which tables are free (memory), and where everything is stored. You never see the manager working, but without one, the restaurant would not run.
When you open a file, play a song, or connect to Wi-Fi, the operating system is handling that request. Windows, macOS, Android, and Ubuntu all do this job in their own way.
These three names get mixed up all the time, so here is the simple version.
Linux is the kernel; it is the core part that interacts with your hardware. Debian is a Linux distribution, which means that the kernel is packaged together with tools, software, and an installer so people can use it. Ubuntu is based on Debian, but it has its own release schedule, software selection, desktop experience, and commercial support options.
If Linux is the engine, Debian is a car built around that engine, and Ubuntu is a model of that car tuned for easy everyday driving.
|
Name |
What it is | Who makes it? |
| Linux | The kernel, the core of the system | Started by Linus Torvalds, now developed by a global community |
| Debian | A community-run Linux distribution | The Debian Project |
| Ubuntu | A Debian-based distribution with a fixed release schedule | Canonical and the community |
So when someone talks about the Linux Ubuntu operating system, they mean Ubuntu, one of the many versions of Linux you can choose from.
Ubuntu started with a simple frustration. Linux was powerful, but for many people it was hard to install and use. Ubuntu was created to fix that.
Canonical Ltd was founded by Mark Shuttleworth in 2004 and began Ubuntu through the work of a group of developers, most of whom came from the Debian project. They aimed to develop an open-source, Linux-based operating system that is easy to install and regularly updated.
The first version, Ubuntu 4.10, nicknamed “Warty Warthog”, came out in October 2004. The number tells you the date: 4.10 means 2004, October. Ubuntu has followed this year and month pattern ever since. Every release also gets a codename with an adjective and an animal that start with the same letter, such as Noble Numbat and Resolute Raccoon.
| Year | Release | Why it matters |
| 2004 | Ubuntu 4.10 | The first release |
| 2006 | Ubuntu 6.06 LTS | The first long-term support version |
| 2011 | Ubuntu 11.04 | Introduced the Unity desktop as the default |
| 2016 | Ubuntu 16.04 LTS | Included support for Snap packages |
| 2017 | Ubuntu 17.10 | Went back to the GNOME desktop |
| 2024 | Ubuntu 24.04 LTS | The “Noble Numbat” long-term release |
| 2026 | Ubuntu 26.04 LTS | The “Resolute Raccoon” release, in April 2026 |
Here are the Ubuntu operating system features that explain its popularity:
There is a lot going on behind the desktop you see. The majority of it can be explained by four ideas.
The kernel is the core of Ubuntu. It controls the processor, memory, storage, and devices like your keyboard, screen, and Wi-Fi card. An app asks the kernel for memory, or for permission to save a file, and the kernel decides how to share the machine’s resources among everything that is running.
This is why Ubuntu is so good at doing a lot of things at once, and why it is so popular for servers that run for months without rebooting.
There are two ways to control the computer in Ubuntu:
The first is a desktop that resembles Windows or macOS with windows, icons, menus, and a software store. GNOME is the default desktop, and the latest long-term release ships with GNOME 50 on Wayland.
The second is the command line, also known as the terminal. You type short commands instead of clicking on things. It seems harder at first glance, but for many jobs it is faster, and it is how most servers are administered. A newbie can use Ubuntu for months without ever opening the terminal, but anyone learning a few commands gets much more out of it.
Ubuntu puts it all into one folder tree. Your home folder holds your personal files. System files are stored elsewhere, protected from accidental change.
Ubuntu also has strict policies on who can do what. Each file has permissions that say who can read it, change it, or execute it. Normal users cannot modify important system files. If you have to, you can type your password and run a task with administrator rights using a command called sudo. The root account (the main administrator) is locked by default, so a mistake or malware cannot easily change the whole system.
It is like a building with offices, and each office has a key card. You can freely walk into your room, but you need special approval for the server room.
On Windows, you typically download an installer from a website. The software on Ubuntu comes from trusted online repositories, and a package manager installs it for you.
There are three common ways to install software.
The big thing is updates. Ubuntu provides tools to manage system and application updates. However, updates may use different mechanisms depending on whether the software is installed through APT, Snap, or another source.
Ubuntu is flexible, which is why you will find it in very different places.
Ubuntu is a family of editions, each made for a different job.
|
Flavour |
Desktop |
Good for |
|
Kubuntu |
KDE Plasma |
People who like a highly customisable desktop |
|
Xubuntu |
Xfce |
Lightweight and simple |
|
Lubuntu |
LXQt |
Very old or low-spec computers |
|
Ubuntu Budgie |
Budgie |
A modern, clean look |
|
Ubuntu Studio |
KDE Plasma |
Audio, video, and graphics creators |
Before you install Ubuntu, check the Ubuntu operating system requirements for the release you plan to download.
For Ubuntu Desktop 26.04 LTS, Canonical lists these requirements for a comfortable experience:
Ubuntu supports multiple processor architectures, including AMD64 and ARM64, but available installation images depend on the device and Ubuntu edition. The RAM requirement went up from 4 GB in the previous long-term release, so check this if your computer is a few years old.
Ubuntu Server has different requirements depending on the installation image and workload. A basic installation can use fewer resources than a full desktop, but databases, websites, and other services need additional RAM and storage.
Canonical’s numbers describe a comfortable experience, and Ubuntu can still be installed on machines with less. It just may feel slow. The table below shows the official figures next to a practical suggestion for smooth day-to-day use.
| Factors | Official requirement (Desktop 26.04 LTS) | Suggested for smooth use |
| Processor | 2 GHz dual-core | A recent quad-core processor |
| RAM | 6 GB | 8 GB or more, especially if you keep many browser tabs open |
| Storage | 25 GB free | An SSD with 50 GB or more free, if you plan to install many apps |
If your computer falls below these numbers, you have good options. Canonical itself suggests using a lighter flavour such as Xubuntu or Lubuntu on older or low-spec machines.
When you go to download Ubuntu, you will see two kinds of releases. Picking the right one saves you from upgrading more often than you want to.
LTS stands for Long Term Support. These releases arrive every two years in April, and each one gets five years of free security and maintenance updates. Ubuntu 26.04 LTS, released in April 2026, receives standard security maintenance until May 2031, according to Canonical’s release-cycle page. With an Ubuntu Pro subscription, the security coverage extends to ten years.
Regular releases, also called interim releases, come out every six months, in April and October. They bring the newest features but are supported for only nine months, so you need to upgrade to the next version fairly soon.
|
Component |
LTS release | Regular (interim) release |
| How often | Every two years, in April | Every six months, in April and October |
| Free support | Five years | Nine months |
| Best for | Servers, work computers, beginners | Enthusiasts who want the newest features |
| Upgrade effort | Low, about every two years | Higher, about every six to nine months |
The simple rule: if you are not sure, pick the latest LTS. It is stable, it is supported for a long time, and almost every tutorial and server guide is written with it in mind. Choose a regular release only if you want the newest software and do not mind upgrading often.
Yes. You can download Ubuntu, install it, use it, and share it without paying anything. There is no licence key, no trial period, and no limit on how many computers you can install it on.
Ubuntu is made of open-source software released under licences such as the GPL. That means anyone can use it for personal, school, or business work, including commercial work, at no cost. Companies run Ubuntu on thousands of servers without paying a licence fee.
There is one thing to know. The Ubuntu name and logo are trademarks of Canonical, so if you plan to share a modified version under the Ubuntu name, you need to follow Canonical’s rules. For normal use, this does not affect you.
Ubuntu Pro is an optional subscription from Canonical. It adds extended security coverage to Ubuntu, including a much longer window of security updates for an LTS release and coverage for a wider set of software packages. It also includes tools for kernel patching without a restart and compliance and hardening features that some businesses need. Paid support is available too.
Pro is free for personal use on up to five machines. Businesses pay per machine. If you are a home user, the free Ubuntu is all you need.
Installing the Ubuntu operating system is easier than most people expect. Here is the whole process, from download to your first login.
The Ubuntu operating system download is available from the official Ubuntu website, and you should always get it there. Go to the download page, pick Ubuntu Desktop, and choose the latest LTS version. You will get an ISO file, which is a single file containing the whole system. It is several gigabytes in size, so give it some time.
This is also the way to get the Ubuntu operating system free download, because the official download costs nothing. Avoid third-party sites offering “free Ubuntu” copies, because a modified file can carry malware.
To install Ubuntu, you put the ISO on a USB drive and start your computer from it.
You do not have to commit straight away. When you start from the USB, Ubuntu offers a Try Ubuntu option that runs the whole system from the USB without changing anything on your computer. You can check that your Wi-Fi, sound, and screen work, and see whether you like it. It runs slower than an installed system because it reads from a USB drive, but it is a good test.
This is how to install Ubuntu operating system on a computer:
If you choose to install Ubuntu alongside Windows, you get a dual-boot system, and a menu at startup lets you pick which one to use. A few tips make it smoother:
Once you restart, you will see the login screen, and Ubuntu is ready to use.
Ubuntu hosting means running your website or application on a server that uses Ubuntu as its operating system. Instead of a laptop with a desktop, you have a remote machine, often in a data centre, running Ubuntu Server and doing work around the clock.
Anything that runs on Linux:
Ubuntu is offered as an operating system choice on most types of hosting.
|
Hosting type |
What you get | Where Ubuntu fits |
| Ubuntu VPS Hosting | A virtual slice of a physical server with your own resources and admin access | A popular choice, since you can install the exact software you need |
| Dedicated server Hosting | A whole physical machine for your use alone | Ubuntu Server runs directly on the hardware, which suits heavy workloads. |
| Cloud server Hosting | Resources taken from a large pool, which you can scale up or down | Ubuntu images are available on the major cloud platforms |
Ubuntu hosting is a good fit when:
It may not be the best choice if you rely on software that only runs on Windows or if you want a fully managed setup with no command line at all. In that case, a managed hosting plan may suit you better.
When comparing the Ubuntu operating system vs Windows, this is the question almost everyone asks when considering a switch. The honest answer is that neither is better for everyone; they are designed for different needs and priorities.
|
If you are… |
A better fit |
| A student or beginner programmer | Ubuntu |
| A developer who deploys to Linux servers | Ubuntu |
| Running a website or application server | Ubuntu Server |
| Using an old laptop that feels slow | Ubuntu or a lighter flavour |
| Relying on Microsoft Office or Adobe software | Windows |
| A serious PC gamer | Windows |
| Wanting both | Dual boot, or Ubuntu inside Windows with WSL |
Yes, and it is the best way to find out whether you like it. Once you complete the Ubuntu download, you can put it on a USB drive and start your computer from it. Choose “Try Ubuntu”, and the whole system runs from the USB, without touching Windows or any of your files. You can check your Wi-Fi, sound, and screen, and try out Ubuntu’s features before you decide. It will feel a little slower than an installed system, but it is a good test.
There are two other ways. You can run Ubuntu inside a virtual machine such as VirtualBox, which opens it in a window on your current computer, or inside Windows using WSL. The free download works for all three, so you do not need to buy anything first. If you like it, you can learn how to install Ubuntu later, with no pressure.
Ubuntu is considered a secure operating system, but no system is completely safe. Several things work in its favour. Normal users cannot change the system without a password, direct root login is disabled by default on a standard Ubuntu installation, and supported versions get regular security updates. It also includes a firewall tool called UFW that you can switch on.
This is one reason people look at the Ubuntu operating system vs. Windows question when they care about security. Ubuntu’s permission system and its way of installing software from trusted sources make it harder for malware to spread. But the biggest risks are still human ones: weak passwords, unknown software, and skipped updates. Use a long-term support release, keep it updated, and only download Ubuntu from the official site so you do not end up with a modified copy.
Sometimes. Tools like Wine and Steam’s Proton can run many Windows programs and games on Ubuntu, but it is not guaranteed for every app. Simple programmes usually work well. Large ones like Adobe Photoshop or the desktop version of Microsoft Office can be harder or may not run at all.
You have other options. You can run Windows inside a virtual machine, use the web version of the app, or look for a Linux alternative such as LibreOffice or GIMP. Before you switch, make a list of the apps you use every day and check each one. If a few of them are Windows-only, a dual-boot setup lets you keep both systems on the same computer.
Yes. Ubuntu is one of the most popular systems for programming. The terminal is built in, and Python, Node.js, Java, Git, and Docker install with a single command. It also behaves very much like the Linux servers where most code ends up running, so there are fewer surprises when you deploy.
It does not ask for much either. Specifications can be sufficient for basic programming, while resource-intensive development tools may need more.
Yes. Ubuntu Server is one of the most widely used operating systems for web servers. It works well with Apache, Nginx, PHP, Python, Node.js, and databases like MySQL and PostgreSQL, so it covers most websites and apps.
The long-term support versions are the main reason it is trusted. An LTS release gets five years of free security updates, so you do not need to rebuild your server every year. Ubuntu Server also needs very little to start. Canonical lists requirements for Ubuntu Server 26.04 LTS that start as low as 1.5 GB of RAM and 4 GB of storage, and they grow with your workload. A busy website or database will need more.
So, what is the Ubuntu operating system? It is a free, open-source operating system built on Linux and Debian, developed by Canonical and a large global community. It comes in editions for desktops, servers, and IoT devices, and it is used by students, developers, businesses, and cloud teams.
If you want to try it, the path is simple. Download the latest LTS release from the official website, check that your computer meets the Ubuntu operating system requirements, and try it from a USB drive before you install. If your computer is older, a lighter flavour will run better. If you need Windows-only software, dual-boot or WSL lets you have both.
Ubuntu is not about replacing everything you know. It is about having a free, reliable, well-supported option, whether you want a fresh start on a laptop, a good place to learn programming, or a solid base for a server.
If you’re planning to run a website or application on Ubuntu, host.co.in offers Ubuntu hosting solutions to support your projects. Explore our Cheap Web hosting plans and choose the right option for your requirements.
Madhavi Potdar
