I have used Windows. I use Ubuntu only for testing purposes. Some things can only be tested on Linux.

We were making use of the Windows server edition for servers and Windows XP/7 for desktops throughout the organization.

We made the switch due to constant ransomware attacks, driver issues, and a lack of support from Microsoft in South Africa. 

We were using Windows before. I like Ubuntu’s performance compared to Windows.

My background includes working with a variety of Linux and Unix versions ranging from IBM AIX, Oracle Solaris, and RedHat-based Linux Distributions. The environment had all the services that were offered by those machines streamlined in order to run only one distribution. It was a good experience for me, however others in the organization had concerns with running Linux.

I personally used CentOS Linux quite a bit during most of our learning years in the IT program. Red Hat was kind of your big standard out there at the time. When I came into this job, because there were only a few things, what we had was really just Ubuntu Server. As we did bigger upgrades, I eventually started changing them and replaced the CentOS ones with Ubuntu ones just to standardize. They were kind of bouncing around at the time, and I don't like bouncing around too much.

I'm just about to do a project and try and switch that over to Windows. There is some stuff that I like with the Linux one, but I'd much rather manage it in Windows because it is much easier where you just say, "Add this host," and it's done. It is magic. It happens and updates everything and stuff. I don't have to go and remember to change the serial number. My biggest problem is that I'll make changes and save them, but nothing happens, and I go, "Why?"

I have used Windows. I switched to Ubuntu because of its stability.

I have previously been involved with Centos. My most experience is in private clouds, and I've been deploying Ubuntu Linux and OpenStack. I set this up at the Ferdowsi University of Mashhad for high-performance computing. However, that was about five years ago. Last year in my new company, I deployed OpenStack for a public cloud. And we are going to use it for some of our customers.

My company previously used an HCI operating system but moved to Ubuntu Linux since the former was expensive to operate.

While I've been a Mac person since the Mac first came out in 1984, I've added Linux for my server items. I didn't really switch to anything else; I've just added onto what I already do.

We used CentOS. CentOS is now decommissioned, so we moved to Ubuntu Linux.

We used SUSE Linux a long time ago.

Windows’ GUI is more convenient than Linux. I mostly use Windows Server. Sometimes, I use Linux. Windows Server is not free.

We switched from Windows to Ubuntu Linux because of the cost. If I want to buy a Windows license, it will take thousands of rupees in Indian currency, but Ubuntu Linux is free of cost.

I've used a few different Linux distributions, but I didn't like the look and feel. So I don't like the other version. I forget what the other version is. There are two other versions. X Force is the blank version. I don't like that version. And I don't really like Gnome, either. 

I have used Apple OS, Microsoft Window, and most recently started using Linux Mint.

I use Windows, too.

We switched to using Ubuntu Linux because it comes with a lot of new features. They are coming out with new releases and a lot of integrations. We have seen most of the applications work very well on top of Ubuntu, so we thought it was a good solution to go ahead with. 

I'm using something called Debian. Ubuntu is based on Debian Linux.

I have used many operating systems. I have used Debian, CentOS, Fedora, Red Hat, and SUSE.

I have also used distributions that have very weird names as well.

I used Windows and Mac OS.

I've been using Red Hat and CentOS but I'm not comfortable with the operating system. With Ubuntu it was a lot quicker to get better security features or updated versions. 

We use different Linux distributions depending on our needs. Ubuntu is good for our desktop workstations, but Red Hat is server based, and it's more stable over time, so we use that on the server for backend stuff. It depends on where it's going to run. We use Ubuntu for workstations and Red Hat or CentOS on the server side.

Ubuntu might have some room for improvement on the server side. But then again, we haven't used it much for that use case, so I don't know. It's easier for me to say what Red Hat or CentOS are missing on the desktop side. Nothing comes to mind that Ubuntu is missing in terms of desktop deployments. 

I use Debian as well. I prefer Debian, however, I also like Ubuntu. Ubuntu is like Debian. Ubuntu is from Debian. I'm also familiar with the Windows Server, and I find that Unbuntu is more flexible and has more potential in terms of how we need to use it. 

We were previously using Windows. We switched to Ubuntu Linux because it was flexible and secure.

In the past we used RHC Fuse, SUSE and Unix, as Ubuntu was not an option. 

Nowadays, SUSE is considered antiquaited and Linux Ubuntu new. 

We used Windows Server 2012 and 2016 before switching to Ubuntu Linux.

We used Red Hat before.

Previously, we had used many other operating systems such as CentOS, SUSE Linux, and a few other operating systems based on Linux.

We have used Microsoft Windows Server and Windows 10.

We have two major operating systems: Microsoft and Linux. 

We do not use Ubuntu Linux in our production environment. For production, we use Red Hat and similar ones, such as Oracle Enterprise Linux. On the server-side, we haven't introduced Ubuntu yet.

I use Windows 10 because I have to, due to the programs I have that came with it, but I use Ubuntu on top of that. 

I've used Red Hat Enterprise and I prefer working in that enterprise environment so I prefer that solution. 

Prior to Ubuntu, I worked with Sun Unix for servers.

I have made the switch to using CentOS primarily because of the interface. It is more lightweight than Ubuntu.

Yes. We had RHEL servers and we took all of them out because of the TCO and the package manager which was a nightmare. A standard Ubuntu server is three times or more faster than RHEL server in booting up.

We were using Ubuntu 12 and we switched to Ubuntu 16, so as to solve the performance issues and version upgrade for development purposes.

I have used Kali Linux before.

I have previously used Microsoft Windows 10 and I am still using this solution for personal use.

We have multiple versions of Linux distributions. The suitability for each, or which one we use, depends on the demand from the vendors and developers.

I used Debian before, but newer versions and solutions are out there and we've decided to start using Ubuntu Linux instead. 

I make use of Debian with KDE and feel Debian's operating system to offer more stability than Ubuntu Linux. 

I am also using IX, HP Unix, Ubuntu, and some Linux.

I have used and do use various others, including services such as AWS S3 /EBS /EFS /EC2 instance, as well as Azure Files/Blobs/etc, GCS.

Also on-prem software, including Microsoft S2D, VMware vSAN, OpenStack/Swift among others.

I'm also familiar with Windows. In many ways it is easier to use, however, it is more prone to viruses and malware, which can be an issue.

Prior to going with the solution, I made use of Red Hat and Enterprise for business purposes. 

I've also used Windows. I prefer Linux over Windows. We're doing some testing where we hope that we can put some applications in Linux eventually. We're testing Docker and similar solutions.

I use a mix of different solutions, two of which are Ubuntu Linux and CentOS.

I used Linux a few years back and then I moved from Linux onto Ubuntu in 2006. I liked the way Ubuntu community marketed itself. I like to use friendly solutions, and not solutions where elitist techno people make other people feel inferior.

I was using Windows. I switched to Ubuntu because I was getting more into programming and I wanted something flexible.

With Windows, everything is loaded into memory when the operating system is started. Linux is a journaled system, which means that you actually have all of that RAM available to process applications and run your applications rather than just running the operating system. There are various things that I like about Linux in that regard. If the computer crashes, I literally can recover the documents. I know that this is now happening in Windows systems, but I used to see that a lot more in Linux.

I have used Kali Linux as well. If you want to go for an open-source solution, Ubuntu Linux is better. It is a bit better to use.

We still have a mix of servers and must support our legacy systems that range from Red Hat, CentOS, and FreeBSD. As time goes, on we require more stable services with updated security, and we replace them with Ubuntu LTS to unify our systems to a standard that is easy to support and deploy.

I used other distributions, such as Slackware, Mandrake, Redhat, Debian and, of all of those, I like the way Ubuntu is setup the best.

I have previously used Microsoft Windows and still do. I use this solution for personal use and when my work requires it.

I'm familiar with many different options, including CentOS, Red Hat, and SUSE. I prefer Unbuntu out of all of these. However, it is a personal preference. Each has its own pros and cons.

Before using Ubuntu, I was used to Debian and their concept of having rock-solid (but also very old) software in their repositories. Ubuntu, however, is not so extreme in this point: It is stable, but the provided software is not thaaaat old. In addition, Ubuntu/Canonical are eager to provide at least some management tools.

I have used Debian and Microsoft Windows previously.

I have used Windows previously.

We used Google Compute Cloud, and we switched because Digital Ocean is cheaper.

I have used Windows and Unix.

We have used Microsoft Windows solutions.

I used to work on Kali Linux and Windows.

Previously, I worked with AIX.

AIX is very old today.

As I am from IT security, there are some type-overs required. I need to use Kali Linux. 

I have also tried some penetration testing tools, which is testing that is better done using Kali Linux tools.

I have also used Oracle Linux. It is very stable and good at tasks that include data transportation, data backup, data products, and other data-related functions.

These two products are different in their design. The choice of these products depends on the needs because they are designed for different goals.

I had used Windows, and I switched to Linux out of curiosity at first, and then for the quality of the OS after.

Previously, I was using Windows 7.

I've used Windows and macOS before, but I have not switched. I'm trying out Ubuntu right now.

I was using macOS previously but I switched to Ubuntu because it's more flexible with hardware (GPU support).  You can run Ubuntu on everything

Prior to using Ubuntu Linux we made use of Windows Server. 

I've also used CentOS, and I would recommend Unbuntu over it.

I did previously use a different solution, however this was recommended to us by colleagues and we're trying it out.

I use Microsoft Windows Server.

We use and have previously used Windows 10 which is a lot better.

Don't change main repository of Ubuntu otherwise, you will get trouble.

I used SlackWare, then Debian. My most important servers are still using Debian, but the other ones are Ubuntu servers.

We use CentOS for our web servers. 

I used Windows for a very long time, however my specialty has been on Unix systems.

Yes, Red Hat 4, SuSe 6.3, . . . .fro the 90s. Because of functionality and easier management

We previously used 3BD and Oracle Linux. We switched because this solution is more user-friendly.

I have used FreeBSD.

We actually use both Ubuntu Linux and CentOS, but CentOS is being decommissioned so our choice is Ubuntu.

We used FreeBSD. We moved to Ubuntu, because FreeBSD package management is very difficult.

Prior to Ubuntu, I was using Debian Linux.

We've only ever used Microsoft products. But Microsoft is very expensive, and the system is complicated.

First I used Fedora. I switched for stability reasons.