Minimalistic system — by design has a tiny attack surface Lacks multi-user accounts or advanced permissions
Monolithic with distributed system extensions
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
FreeDOS is a free, open-source operating system designed to be compatible with MS-DOS
The history of Microsoft Edge is a tale of humility, pragmatism, and reinvention.
CentOS Based On: Upstream source code of Red Hat Enterprise Linux Virtualization ready (KVM, Xen, Docker, Podman
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.
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
FreeRTOS Basic Information,Kernel & Architecture,Version History & Important Milestones,Target Audience & Use Cases