History

This page is a work in progress.

This page may thus be incomplete. Its content may be changed in the near future.

This page covers the history of Operating System Development (OSDev) as it applies to amateur, educational and smaller operating systems. Other pages cover different aspects of the history of computer operating systems. A general history of mainstream OSes can be found on Wikipedia. A more detailed timeline and hierarchy of UNIX and similar OSes can be found at the UNIX history page.

Introduction

Informal operating system development has been a growing hobby over the last few years, and has become an enjoyable pass-time. Many of the developers that frequent osdev.org are studying college (university) level computer science, but there are many also that have no formal background in computer science, and are self taught.

Several factors have brought about the upswing in popularity of developing operating systems. The first is the availability of open documentation, and the access to this provided by the Internet. The second factor is the availibility of cheap hardware that can be used personally for testing the systems on (since a computer must be restarted to test an operating system, this makes it hard to test on a system with multiple users).

Another possible factor is the recent popularity of GNU/Linux systems, and the Linux kernel in particular. The Linux kernel was not the first kernel to open its sources to the world, but it is (and has been for the last decade at least) the most popular. Since many programmers are aware of Linux's open state, they may be more inclined to delve deeper into the kernel than they would be with a closed kernel. Today Linux has become a mainstream kernel, with many companies investing in its development. It has become a good example of how a hobbyist kernel can become something big, given enough man hours and the right chances.

About the word 'OSDev'

The use of OSDev as an abbreviation for Operating System Development seems to have started well before osdev-related newsgroup traffic started in 1996. Prior to it's use with hobbyist development, OSDev also stood for other things; mainly On Screen Device. OSDev is now a common enough term than the wikipedia article on osdev is about operating system development.

Timeline

Informal operating system development that didn't directly connect to an academic project started to take off in October of 1996.

September/October 1996: Malte Kroeger created a mailing list(os-list@aros.net) that grew to 30+ people in size.

September/October 1996: The os-list mailing list discussions were moved over to the comp.os.misc newsgroup.

September 10,1996: Michael Hobbs posts a message on comp.os.misc that stated I'm beginning to believe that there exists at least 1 OS for each person who reads this group. This pattern holds true 10 years later.

September 12, 1996: It is suggested on comp.os.misc that a dedicated os development newsgroup be created. Some of the suggested names include: comp.os.design, comp.os.homebrew.develop, comp.os.development, and alt.hobby.osdev. Two names are agreeded on; comp.os.development and comp.os.assembly. Eventually the names would change to use alt instead of comp. original discussion

1997: A web based message board was created at www.effect.net.au/os-dev/wwwboard/wwwboard.htm to host osdev discussions.

1997: One of the first OS project lists is created that contains OSes built by single developers. There were 20 projects and Linux was listed as it was still considered a small OS. Internet Archive mirror

September 11, 1997: One year after being suggested the newsgroups alt.os.development and alt.os.assembly are created. NASM is recommended as the assembler of choice. Archive of the original announcement and group descriptions

August 2000: The http://www.osdev.org is created as a place to contain os development information.

October 18, 2006: The two largest os development forums, Mega-Tokyo and OSDev.org, are merged in to one single forum creating the single largest community of operating system developers working on different OSes. The original os development newsgroups are eclipsed by several orders of magnitude in traffic.

Famous Quotes / Usenet Posts

• Aug 25 1991: Linus Torvalds announces the Linux kernel for the first time on comp.os.minix. [1]
• Oct 6 1991: Linus Torvalds announces v0.02 of the Linux kernel. [2]