Best Operating Systems
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Compare the Top Operating Systems as of October 2025
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What are Operating Systems?
Operating systems are foundational software that manage computer hardware, software resources, and provide services for applications and users. They handle critical functions such as process scheduling, memory management, device control, file systems, and security. Operating systems provide a user interface—either graphical (GUI) or command-line—that allows individuals to interact with the machine. They also offer APIs and system calls that enable developers to build and run applications consistently across devices. From personal computers to servers, mobile devices, and embedded systems, operating systems are essential for ensuring stability, efficiency, and usability in modern computing environments. Compare and read user reviews of the best Operating Systems currently available using the table below. This list is updated regularly.
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BlackBerry QNX
BlackBerry QNX
Launch your critical embedded systems faster with our commercial RTOS, development tools and services. BlackBerry QNX delivers a time-tested real-time operating system (RTOS), hypervisor, and other embedded software to help make you successful. We are the embedded OS of choice for ventilators, train controls, factory automation systems, medical robots and more. Whether your priority is safety certification, security or performance, our software, tools and services can help you build more reliable products. If you’re looking to increase security or safety, or you want to streamline your cross-platform development process, we can help. We can bring your plans to life with an RTOS and hypervisor purpose-built for embedded systems, including pre-certified product variants. Our modular microkernel architecture delivers better reliability and saves duplication of OS development effort across multiple products.
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