Oct 14, 202517
RISC Operating System
Originally Acorn Computers, now maintained by RISC OS Open Ltd
tarun basu·5 min read
riscos
Read more
Oct 14, 202520
GE Operating System
Advanced user account controls, file permissions, job accounting.
tarun basu·4 min read
os
Read more
Oct 14, 202518
Serenity Operating System
SerenityOS Community-led project (founded by Andreas Kling)
tarun basu·4 min read
serenityos
Read more
Oct 14, 202520
Haiku Operating System
Haiku is a unique project that preserves the innovative spirit of BeOS—focusing on a fast, elegant, and unified personal computing experience
tarun basu·5 min read
os
Read more
Oct 14, 202532
Windows Operating System
Windows OS, developed by Microsoft in 1985, is the world’s most widely used desktop operating system.
tarun basu·6 min read
os
Read more
Oct 14, 202522
FreeRT Operating System
FreeRTOS Real-time microkernel (non-monolithic
tarun basu·5 min read
os
Read more
Oct 14, 202513
IBM and System/360
Before OS/360, IBM developed separate hardware and software for each computer model. Programs written for one system wouldn’t run on another.
tarun basu·10 min read
os
Read more
Oct 14, 202515
Inferno Operating System
Microkernel-like, with heavy reliance on a virtual machine Portable virtual machine: Dis VM runs the Limbo language everywhere
tarun basu·5 min read
os
Read more
Oct 14, 202515
INTEGRITY RT Operating System
MULTI IDE showing INTEGRITY tasks, trace debugging & memory partitions
tarun basu·5 min read
os
Read more
Oct 14, 202522
Kolibri Operating System
Minimalistic system — by design has a tiny attack surface Lacks multi-user accounts or advanced permissions
tarun basu·5 min read
kolibrios
Read more
Oct 14, 202522
LOCUS Operating System
Monolithic with distributed system extensions
tarun basu·5 min read
locusos
Read more
Oct 14, 202519
Menuet Operating System
MenuetOS (also known as MeOS) Tiny footprint: Core OS fits on a 1.44 MB floppy (still with GUI, network, and apps)
tarun basu·5 min read
menuetos
Read more