Editing Oberon (operating system) (section)

== History ==
The Oberon operating system originated as part of the [[NS32000|NS32032]]-based [[Ceres (workstation)|Ceres]] workstation project. It was written almost entirely (and in  the 2013 version entirely is valid) in the [[Oberon (programming language)|Oberon]] [[programming language]].<ref name="PIO">[http://www.ethoberon.ethz.ch/WirthPubl/ProgInOberonWR.pdf M. Reiser and N. Wirth: Programming in Oberon] Addison-Wesley/ACM Press (1992) {{ISBN|0-201-56543-9}}. Out of print.</ref> 
The basic system was designed and implemented by [[Niklaus Wirth]] and [[Jürg Gutknecht]] and its design and implementation is fully documented in their book "Project Oberon".<ref name="PO">[https://inf.ethz.ch/personal/wirth/ProjectOberon1992.pdf N. Wirth and J. Gutknecht: Project Oberon - The Design of an Operating System and Compiler] Addison-Wesley/ACM Press (1992) {{ISBN|0-201-54428-8}}. Out of print. [http://www.inf.ethz.ch/personal/wirth/ProjectOberon/ Online version of the second edition (2013)].</ref> The user Interface and programmers reference is found in Martin Reiser's book "The Oberon System".<ref name="OS">Reiser, Martin: "The Oberon System - User Guide and Programmer's Manual" - Out-of-print - Addison-Wesley/ACM Press (1991) {{ISBN|0-201-54422-9}}</ref> The Oberon System was later extended and ported to other hardware platforms<ref>A. R. Disteli, Oberon for PC on an MS-DOS base, Technical Report #203 der [[ETH Zurich]], November 1993, [http://e-collection.library.ethz.ch/eserv/eth:3801/eth-3801-01.pdf Reprint].</ref><ref>
J. Supcik, HP-Oberon, Technical Report #212 of the [[ETH Zurich]], November 1993, [http://e-collection.library.ethz.ch/eserv/eth:3931/eth-3931-01.pdf Reprint].</ref><ref>
M. Franz, MacOberon Reference Manual, Technical Report #142 der [[ETH Zurich]], November 1993, [http://e-collection.library.ethz.ch/eserv/eth:3278/eth-3278-01.pdf Reprint].</ref><ref>
J. Templ, Design and implementation of SPARC-Oberon. Structured Programming, 12, 197–205 (1991).</ref><ref>
M. Brandis, R. Crelier, M. Franz, J. Templ, The Oberon System Family. Software-Practice and Experience, Vol. 25(12), 1331–1366, December 1995. Also: [http://e-collection.library.ethz.ch/eserv/eth:3424/eth-3424-01.pdf Technical Report 174] of the [[ETH Zurich]].</ref>
by a team at [[ETH Zurich]] and there was recognition in popular magazines.<ref>R. Gerike, Wider den Schnickschnack. Oberon System, Teil 1: Anwendersicht. ''c't'' 1994 (2) p. 180, Teil 2: Technische Einblicke. c't 1994 (3), p. 240 (German language).</ref>
<ref name="Sys3">
H. Marais, Oberon System 3, Dr. Dobb's Journal, October 1994, [http://www.drdobbs.com/architecture-and-design/oberon-system-3/184409324 pages 42-50].</ref><ref>
{{Cite magazine |last=Pountain |first=Dick |date=May 1993 |title=Oberon: A Glimpse at the Future |magazine=[[Byte (magazine)|Byte]] |volume=18 |issue=5 |page=111ff |url=https://archive.org/stream/BYTE-1993-05#page/n124/mode/1up |via=Archive.org}}</ref><ref>
{{Cite magazine |last=Pountain |first=Dick |date=March 1991 |title=Modula's Children, Part II: Oberon |magazine=[[Byte (magazine)|Byte]] |volume=16 |issue=3 |pages=135–142 |url=https://archive.org/stream/byte-magazine-1991-03/1991_03_BYTE_16-03_Network_Management#page/n187/ |via=Archive.org}}</ref><ref>
{{Cite magazine |last=Pountain |first=Dick |date=January 1995 |title=The Oberon/F System |magazine=[[Byte (magazine)|Byte]] |volume=20 |issue=1 |page=227f |url=https://vintageapple.org/byte/pdf/199501_Byte_Magazine_Vol_20-01_Small_Office_Big_Business.pdf |via=Vintage Apple}}</ref><ref>
{{Cite magazine |last=Börner |first=T. |date=March 1999 |title=Betriebssysteme: Native Oberon für den PC |magazine=[[Chip (magazine)|Chip]] |page=131ff |language=de}}</ref> 
Wirth and Gutknecht (although being active [[computer science]] professors) refer to themselves as 'part-time programmers' in the book ''Project Oberon''.<ref name="PO"/> In late 2013, a few months before his 80th birthday, Wirth published a second edition of Project Oberon.<ref>{{cite web |url=https://lists.inf.ethz.ch/pipermail/oberon/2013/006922.html |title=[Oberon] Project Oberon, 2013 Edition |last=Reed |first=Paul |date=21 December 2013 |access-date=13 February 2021}}</ref> It details implementing the Oberon System using a [[reduced instruction set computer]] (RISC) CPU of his own design realized on a Xilinx [[field-programmable gate array]] (FPGA) board. It was presented at the symposium<ref>{{cite AV media |last=Wirth|first=Niklaus |date=20 February 2014 |title=Niklaus Wirth Birthday Symposium |access-date=13 February 2021 |url=https://video.ethz.ch/conferences/2014/wirth/d40b0ce9-b9fa-4ba3-8dee-cf9d0c6f01a4.html |website=ETH Zurich}}</ref> organized for his 80th birthday at [[ETH Zurich]]. In the meantime, several emulators for this version were implemented.<ref name="PDW-Emul">
{{cite web |url=https://github.com/pdewacht/oberon-risc-emu |title=Oberon RISC Emulator |last=De Wachter |first=Peter |date=18 August 2020 |website=GitHub |access-date=13 February 2021}}</ref><ref name="JS-Emul">
{{cite web |url=https://schierlm.github.io/OberonEmulator/ |title=Project Oberon emulator in JavaScript and Java |last=Schierl |first=Michael |date=19 January 2021 |website=GitHub |access-date=13 February 2021}}</ref><ref name="Ultibo-Emul">
{{cite web |url=https://github.com/MGreim/ultiboberon |title=Port of the Oberon RISC Emulator to [Ultibo] |last=Greim |first=Markus |date=14 August 2016 |website=GitHub |access-date=13 February 2021}}</ref><ref name="Go-Emul">
{{cite web |url=https://github.com/fzipp/oberon |title=Project Oberon emulator in Go |date=18 September 2021 |website=GitHub |access-date=13 February 2021}}</ref><ref>
{{cite web |url=http://www.reactive-instruments.eu/ |title=Oberon Workstation |last=de Jong |first=Roel P. |date=19 October 2018 |website=Reactive Instruments |access-date=13 February 2021}}</ref>

According to Josef Templ, a former member of the developer group at [[ETH Zurich|Swiss Federal Institute of Technology in Zurich]] and later member of the ''Institut für Systemsoftware'' of [[Johannes Kepler University Linz]], where one forked version (V4) was maintained, the genealogy of the different versions of the Oberon System is this:
{| class="wikitable"
|-
! | Year 
! colspan="2" | Name 
! | Remark
|-
| 1985
| colspan="2" align="center"| 
| Start of Oberon project
|-
| 1987 
| colspan="2" align="center"| V1
| Internal use at [[ETHZ]];<ref name="OSReport"/><ref>Wirth, Niklaus. Designing a System from Scratch. Structured Programming (1989) Vol. 10, pp. 10–18.</ref> simple text editing facilities only
|-
| 1991 || V2 || || Extensible text model and a special editor named Write<ref name="Write">Szyperski, Clemens A., Write: An extensible text editor for the Oberon system. [[ETH Zurich|Swiss Federal Institute of Technology in Zurich]] (1991). [http://e-collection.library.ethz.ch/eserv/eth:3313/eth-3313-01.pdf Report 151].</ref> supporting these extensions
|-
| 1991 || || System 3 || [[Kernel (operating system)|Kernel]] extensions supporting persistent objects and object-libraries supporting object embedding and object linking; Gadgets, Script (text editor), Illustrate (graphics editor)<ref name="Sys3"/>
|-
| 1992 || || || Publication of Oberon Trilogy: "Project Oberon",<ref name="PO"/> "The Oberon System",<ref name="OS"/> and "Programming in Oberon"<ref name="PIO"/>
|-
| 1992 || V4 || || Functions of Write integrated into standard text editor
|-
| || || Rel. 1.4 || Desktops
|-
| 1993 || || Rel. 1.5 || Generic document model
|-
| 1994 || V4 || || [[:de:Hanspeter Mössenböck|Hanspeter Mössenböck]] appointed at [[Johannes Kepler University Linz|JKU (Linz)]], V4 development moves there
|-
| 1995 || || Rel. 2.0 || Document space extended to the whole internet; improved bitmap editor: Rembrandt; online tutorials
|-
| 2000 || || ETH-Oberon || System-3 renamed ETH-Oberon
|-
| 2002 || || AOS || Active Object System,<ref name="AOSthesis"/> also Active Oberon System, later renamed Bluebottle, then [[A2 (operating system)|A2]]
|-
| 2013
| colspan="2" align="center"| PO 2013 - V5 
| Re-implementation of the original Oberon System in FPGA
|-| Col1 || Col2 || Col3 || Col4
|}