Redox OS is an ongoing, ambitious project that serves as a proof-of-concept for building a modern, memory-safe operating system from the ground up
Bazzite is a Fedora-based, immutable Linux distribution specifically designed and pre-configured for gaming and entertainment.
GNU IceCat is a free and open-source web browser from the GNU Project. It is a fork of Mozilla Firefox, modified to ensure it contains 100% free software and to enhance user privacy.
nduinOS is a cloud-native, container-based operating system designed from the ground up for a connected world. Its history is a story of a bold vision finding a practical home.
Maemo was a pioneering, Linux-based open-source operating system developed by Nokia in the mid-2000s for its "Internet Tablets" and smartphones.
Motorola's OS history mirrors the entire mobile industry's evolution, from simple proprietary software to the modern smartphone era
postmarketOS (pmOS) is a free, open-source Linux-based operating system designed for mobile devices like smartphones and tablets.
MeeGo was a promising, unified OS that was killed by corporate strategy before it could flourish, but its technology and ideas lived on in other projects
Palm OS defined the PDA category and pioneered the concept of the smartphone. Its focus on speed and core productivity remains influential
Monarchy Linux was a source-based Linux distribution active primarily in the early 2000s. It was essentially an automated version of Linux From Scratch (LFS).
Designed for deterministic response times — crucial for embedded & safety-critical systems
Windows OS, developed by Microsoft in 1985, is the world’s most widely used desktop operating system.
Windows OS, developed by Microsoft in 1985, is the world’s most widely used desktop operating system. It offers a GUI, multitasking, device support, and vast software compatibility.
List of Operating Systems
BOSS OS is either the Indian Linux distribution promoting digital independence, or a conceptual term for a core managing system, most famously realized in early web-based desktop environments
FreeRTOS Basic Information,Kernel & Architecture,Version History & Important Milestones,Target Audience & Use Cases
BREW OS (Binary Runtime Environment for Wireless) Latest Official Version BREW 4.0 (around 2007) Early binary app platform for mobile phones — downloadable apps, long before app stores.
CentOS Based On: Upstream source code of Red Hat Enterprise Linux Virtualization ready (KVM, Xen, Docker, Podman
Amoeba Operating System Based On: Designed from scratch for distributed systems research Architecture Support: x86, older UNIX workstation hardware
Android OS Originally Android Originally Android Touch-optimized GUI with home screen, widgets, app drawer
Berkeley Software Distribution Kernel Type: Monolithic kernel with modular subsystems
C64 OS Made up of KERNAL (low-level I/O & drivers), BASIC interpreter, and the screen editor
CDC SCOPE OS Kernel Type: Monolithic, batch-oriented OS
ChorusOS **Kernel Type:** Microkernel (minimal services in kernel mode)
Control Program for Microcomputers Simple monolithic command monitor & BIOS layer Designed for Intel 8080 & compatible 8-bit microcomputers
Disk Operating System family Monolithic kernel operating in real mode on Intel x86 CPUs
MS-DOS was a simple, minimalist operating system with these key characteristics
Personal Computer Disk Operating System
Q DOS OS QDOS was heavily inspired by CP/M, to ensure software compatibility
FreeDOS is a free, open-source operating system designed to be compatible with MS-DOS
FreeRTOS Real-time microkernel (non-monolithic
Advanced user account controls, file permissions, job accounting.
Haiku is a unique project that preserves the innovative spirit of BeOS—focusing on a fast, elegant, and unified personal computing experience
Before OS/360, IBM developed separate hardware and software for each computer model. Programs written for one system wouldn’t run on another.
Microkernel-like, with heavy reliance on a virtual machine Portable virtual machine: Dis VM runs the Limbo language everywhere
MULTI IDE showing INTEGRITY tasks, trace debugging & memory partitions
Minimalistic system — by design has a tiny attack surface Lacks multi-user accounts or advanced permissions
Technically not a standalone OS kernel, but a network operating system layer installed on top of MS-DOS or Windows
Monolithic with distributed system extensions
Beautiful Aqua GUI with advanced graphics (Quartz, Metal)
MenuetOS (also known as MeOS) Tiny footprint: Core OS fits on a 1.44 MB floppy (still with GUI, network, and apps)
MINIX is a historically significant OS that proved the practicality of the microkernel design and served as the catalyst for the world's most popular kernel, Linux
Multiplexed Information and Computing Service
Novell NetWare Monolithic, multitasking real-mode (in early versions), later protected mode
Plan 9 from Bell Labs
ReactOS
Originally Acorn Computers, now maintained by RISC OS Open Ltd
SerenityOS Community-led project (founded by Andreas Kling)
TempleOS Entire OS is a single developer’s creation, including kernel, compiler, editor, and even the shell
