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Best Operating System

The operating system (OS) allows users to perform the basic functions of a computer. The OS manages all software and peripheral hardware, and accesses the central processing unit (CPU) for memory or storage purposes. It also makes it possible for a system to simultaneously run applications. All PCs, laptops, tablets, smartphones, and servers require an OS. Developers may use specific operating systems that are more conducive to programming and application development, while the average employee will likely use a proprietary system for more common, everyday usage. The most common operating systems are Microsoft’s Windows, Apple’s OS X, Linux distributions, and mobile operating systems for smartphones.

Windows 7 vs Windows 10

Android vs iOS

Ubuntu vs. Linux

Mac vs Windows 10

Windows 8 vs Windows 10

Ubuntu vs Windows 10

Linux vs. Windows 10

Windows Phone vs. Android

Windows 10 vs. Linux

Mac vs. Linux

Windows 10 vs. macOS Sierra

To qualify for inclusion in the Operating System category, a product must:

  • Manage a device’s software and external hardware
  • Allow for simultaneous use of applications
  • Connect with the central processing unit for memory and storage allocation
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Operating System reviews by real, verified users. Find unbiased ratings on user satisfaction, features, and price based on the most reviews available anywhere.

Compare Operating System
Results: 79
    G2 Crowd takes pride in showing unbiased ratings on user satisfaction. G2 Crowd does not allow for paid placement in any of our ratings.
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    Windows 10 is familiar and easy to use, with lots of similarities to Windows 7 including the Start menu. It starts up and resumes fast, has more built-in security to help keep you safe, and is designed to work with software and hardware you already have.


    Windows 7 is your PC simplified. Enjoy your media wherever you want, stay productive with the smart new desktop, get creative with Windows Live Photo Gallery.


    An advanced mobile operating system. With its easy-to-use interface, amazing features, and rock solid stability, iOS is the foundation of iPhone. And even as others try to catch up, the technologies and features built into iOS keep iPhone years ahead.


    Open source platform for mission-critical computing


    Super-fast, easy to use and free, the Ubuntu operating system powers millions of desktops, netbooks and servers around the world.


    Android is the a globally popular mobile platform. With Android you can use all Google apps, plus thousands of apps and games are available on Google Play.


    OS X El Capitan gives you simpler, smarter ways to do the things you do most with your Mac. Like working in multiple apps at the same time using Split View.


    Debian is an operating system is the set of basic programs and utilities that make your computer run , at the core of an operating system is the kernel.


    Oracle Linux brings the latest Linux innovations to market, delivering extreme performance, advanced scalability, and reliability for enterprise applications and systems along with worldwide, enterprise-class, low-cost support. Optimized for enterprise workloads, Oracle Linux is the only operating system to offer zero-downtime updates.


    CentOS is an Enterprise-class Linux Distribution derived from sources freely provided to the public by a prominent North American Enterprise Linux vendor.


    OS X Mountain Lion is Apple's best OS yet. Because all these new features add up to one amazing experience on your Mac. And every device you use.


    Windows reimagined and reinvented from a solid core of Windows 7 speed and reliability. It's an all-new touch interface. It's a new Windows 8 for new devices.


    macOS Sierra helps you rediscover your best photos, shop fast and conveniently online, and work between devices. It can also help free up storage space.


    Fedora is a Linux-based operating system, a collection of software that makes your computer run.


    Chomium is an open-source project that aims to build an operating system that provides a fast, simple, and more secure computing experience for people who spend most of their time on the web.


    BlackBerry revolutionized the mobile industry. Today, BlackBerry aims to inspire the success of our millions of customers around the world by continuously pushing the boundaries of mobile experiences.


    Streamline your operations with the right UNIX computing environment. HP-UX is a highly integrated UNIX operating system built on the always-on resiliency of mission-critical HPE Integrity servers to give you a dynamic, secure, and unified environment.


    openSUSE is a free and Linux-based operating system for your PC, Laptop or Server. You can surf the web, manage your e-mails and photos, do office work, play videos or music and have a lot of fun!


    Oracle Solaris 11.2 is a complete, integrated platform, combining OpenStack, software-defined networking, and built-in virtualization with a proven enterprise-class operating system.


    Raspbian is a free operating system based on Debian optimized for the Raspberry Pi hardware.


    AIX delivers these capabilities and more, with the performance, reliability and security your mission-critical data requires.


    Lubuntu is a fast and lightweight operating system. The core of the system is based on Linux and Ubuntu that uses the minimal desktop LXDE, and a selection of light applications.


    With more than 200 new features, OS X Mavericks brings iBooks and Maps to the Mac, includes a new version of Safari, enhances multi-display support, introduces Finder Tabs and Tags and delivers new core technologies for breakthrough power efficiency and performance.


    An elegant design that feels entirely fresh, yet inherently familiar. The apps you use every day, enhanced with new features. And a completely new relationship between your Mac and iOS devices. OS X Yosemite will change how you see your Mac. And what you can do with it.


    Arch Linux is a lightweight and flexible Linux distribution that tries to keep it simple.Currently It has official packages optimized for the x86-64 architecture


    BlackArch Linux is an Arch Linux-based penetration testing distribution for penetration testers and security researchers.


    CloudReady is an operating system designed to help organizations embrace cloud resources by enabling them to securely control and manage endpoints.


    GhostBSD is an operating system based on FreeBSD for home and office users.


    Linux Mint produces a modern, elegant and comfortable operating system which is both powerful and easy to use.


    OpenIndiana is a community fork of the OpenSolaris operating system.


    Slackware Linux is an advanced Linux operating system, designed with the twin goals of ease of use and stability as top priorities,including the latest popular software while retaining a sense of tradition, providing simplicity and ease of use alongside flexibility and power,


    SystemRescueCd is a Linux system rescue disk available as a bootable CD-ROM or USB stick for administrating or repairing your system and data after a crash. It aims to provide an easy way to carry out admin tasks on your computer, such as creating and editing the hard disk partitions.


    Tails is a live operating system that you can start on almost any computer from a USB stick or a DVD.It aims at preserving your privacy and anonymity.


    Ubuntu’s unique scopes brings everything you need to one screen without the need to open and switch between multiple apps.The Ubuntu Phone has been built to revolve around you and the content and services you use the most.


    Whether you want premium features and performance at a good price or a powerhouse of productivity that fits in your pocket, there's a Windows phone thatÍs perfect for you.


    Xfce is a desktop environment for UNIX like operating systems that embodies modularity and re-usability with components to provide functionality of a modern desktop environment.


    3DPrinterOS has developed the world’s first operating system for desktop 3D Printers. 3DPrinterOS now powers Bosch Dremel 3D Printers which are readily available for sales worldwide and at local stores like Home Depot and Amazon.


    Amazon FreeRTOS is an operating system for microcontrollers that makes small, low-power edge devices easy to program, deploy, secure, connect, and manage.


    The QNX CAR Platform for Infotainment is a proven, full-featured software stack designed to help automotive manufacturers build graphically-rich, connected infotainment systems that incorporate leading automotive technologies.


    Black Lab Linux is based on Ubuntu Linux tailored both for general desktop use and for the more technical user. It is commercially made available by PC/OpenSystems LLC for business desktops, education facilities, as well as parallel computing.


    Bodhi is a whole suite of libraries to help you create beautiful user interfaces with much less work than doing it the old fashioned way and fighting with traditional toolkits, not to mention a traditional window manager.


    BunsenLabs Linux is a distribution offering a light-weight and easily customizable Openbox desktop.The distribution consists of configuration and resource packages installed on top of Debian.


    CIS Red Hat Enterprise Linux offers an objective, consensus-driven security guideline for the Red Hat Linux Operating Systems.


    CoreOS provide a software that securely run application containers anywhere.


    deepin is a Linux distribution committed to providing an elegant, user-friendly, safe and stable operating system for users all over the world.


    Flint OS is a fast, simple and productive operating system built on open source Chromium OS


    Gentoo is an operating system based on either Linux or FreeBSD and can be customized for just about any application or need.


    HPE OpenVMS is a general-purpose, multi-user operating system that runs in both production and development environments. It supports industry standards, facilitating application portability and interoperability, and it provides symmetric multiprocessing (SMP) support for multiprocessing systems.


    IBM i prepares you for business growth with data at its core. Run multiple applications in a single environment, benefit from industry-unique, virus-resistant, object-based architecture, and use best-of-breed IBM Rational development tools and IBM tools partners.


    Defined by simplicity and innovation, Junos OS is the single operating system that powers Juniper's broad portfolio of physical and virtual networking and security products.


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