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Difference between revisions of "/aosg/ Alternative Operating System General"

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(OS Written in Assembly: Added DexOS)
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=== Plan 9 Family ===
 
=== Plan 9 Family ===
 
* https://9p.io/ Plan 9 - a research project from ATT by the founders of Unix
 
* https://9p.io/ Plan 9 - a research project from ATT by the founders of Unix
 +
* https://www.vitanuova.com/inferno/ Inferno - based on Plan 9, by many of the same people
 
* https://9front.org/ 9front is a continuation
 
* https://9front.org/ 9front is a continuation
 
* https://harvey-os.org/ HarveyOS is another continuation
 
* https://harvey-os.org/ HarveyOS is another continuation

Revision as of 23:05, 24 January 2023

Because it's fun to think about what could have been or what might be.

After a thread on /g/, one anon expressed an interest to turn this into a general, and here are some notes to keep to build up a FAQ.

Threads

OP has not yet mastered 4chan posting, so there is as yet no easy way to locate old threads. Manual list:

List of Notable Alternative Operating Systems

Operating Systems for Amiga

Plan 9 Family

OS Written in Assembly

  • https://www.menuetos.net MenuetOS, an operating system written entirely in assembly complete with a GUI. Not all is open source
  • http://www.kolibrios.org/en/ KolibriOS is a free fork of MenuetOS. KolibriOS is very small - The kernel and most of the programs fit on a 1.44MB floppy disk.
  • http://dex-os.github.io/ DexOS is a x86 32-bit console like operating system, coded in 100% ASM

Educational OS

Microkernels

The idea is to minimise the kernel and have all services running as services at lower privileges and in a way that the services can be restarted after a crash. Microkernels often work by message passing, and that can cause an overhead. Mach had major performance issues.

  • Exec (Amiga) - the Executive at the deepest level of Amiga OS is a microkernel
  • Minix is famously microkernel based and the author, Tanenbaum, slogged it out with Linux Torvalds and his decision to make Linux a monolithic kernel rather than a microkernel based OS
  • Magenta, based on Little Kernel and later renamed into Zircon - this powers Fuchsia
  • Mach, later GNU Mach - chosen to power HURD.
  • L4 is a family of microkernels

L4 Family of Microkernels

There are many members, the most important are:

  • L4 - can run Linux variants such as L4Linux
  • seL4 - high security microkernel

Emulators

A full install, or even a live CD, is not necessarily needed, sincfe there are emulators.

  • https://copy.sh/v86/ JS VM with lots of OS, including one for Serenity OS.
  • http://simh.trailing-edge.com/ SimH (History Simulator) is a collection of simulators for historically significant or just plain interesting computer hardware and software from the past. Of special note is VAX/VMS where a hobbyist license is provided by Hewlett-Packard Corporation.

Misc

Resources for OSDEV

/aosg/ Book Club