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btreut
a2
Modula-22016–2026
btreut / a2

a2

Active Oberon System (AOS), aka A2, and Bluebottle OS

Explore on GitHubRead Hacker News discussions
5Distinct people
13Mentions
0Explicit recommenders
96GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

Active Oberon System (AOS), aka A2, and Bluebottle OS

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 8–Nov 15 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/15/2026, 2:04:58 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year13 dated mentions

Observed mentions: 2016-03-19 20:38:14 UTC to 2026-08-09 18:33:56 UTC.

01232016-01-01 00:00:00 UTC to 2017-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments20162017-01-01 00:00:00 UTC to 2018-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2018-01-01 00:00:00 UTC to 2019-01-01 00:00:00 UTC (exclusive): 3 mentions; 0 submissions, 3 comments2019-01-01 00:00:00 UTC to 2020-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2020-01-01 00:00:00 UTC to 2021-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments20212022-01-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 3 mentions; 0 submissions, 3 comments2023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2024-01-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-01 00:00:00 UTC to 2026-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-01-01 00:00:00 UTC to 2027-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments. Incomplete calendar period.2026*

* An incomplete calendar period is marked with an outlined bar. Its count is not directly comparable with a full period.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20162016-01-01 00:00:00 UTC2017-01-01 00:00:00 UTC101
20172017-01-01 00:00:00 UTC2018-01-01 00:00:00 UTC202
20182018-01-01 00:00:00 UTC2019-01-01 00:00:00 UTC303
20192019-01-01 00:00:00 UTC2020-01-01 00:00:00 UTC000
20202020-01-01 00:00:00 UTC2021-01-01 00:00:00 UTC202
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC000
20222022-01-01 00:00:00 UTC2023-01-01 00:00:00 UTC303
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC101
20242024-01-01 00:00:00 UTC2025-01-01 00:00:00 UTC000
20252025-01-01 00:00:00 UTC2026-01-01 00:00:00 UTC000
2026 (partial)2026-01-01 00:00:00 UTC2027-01-01 00:00:00 UTC101

What Hacker News says

3 sources
pjmlp·Oct 9, 2018
Sure, You can read the Project Oberon 1992's book, sections 3.3 and 3.4 as starting point. http://www.ethoberon.ethz.ch/WirthPubl/ProjectOberon.pdf Then you can follow up with the 2003's edition. https://www.inf.ethz.ch/personal/wirth/ProjectOberon/index.h... With a stop in the last pure Oberon iteration, Oberon System 3 Gadgets. http://www.ethoberon.ethz.ch/ethoberon/tutorial/ Oberon Companion describes gadgets and tools http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.472... The existing PDF book has a couple of rendering issues, but if you install BlueBottle, it has Oberon System 3 as demo application, with the original book in Oberon rich text format (not to mix with RTF). https://www.youtube.com/watch?v=t6NMJh0noDk&index=35&list=WL... Which by the way, also describes the Tools on its manual, A2 User Guide and Application Desc
Read the rest
ription http://www.ocp.inf.ethz.ch/wiki/Documentation/Front https://github.com/btreut/a2 The surviving ISO images https://sourceforge.net/projects/a2oberon/files/
In Native Oberon
lproven·Sep 7, 2018
As for the OS, I assembled some links here: https://liam-on-linux.livejournal.com/46523.html This is a good overview: http://ignorethecode.net/blog/2009/04/22/oberon/ Oberon, a tiny text-oriented OS, evolved into A2, a graphical OS with a zooming UI called Bluebottle. There's some info about A2/Bluebottle here: http://sage.com.ua/en.shtml?e1l0 Here is the OS on GitHub: https://github.com/btreut/a2 There are bare-metal versions for x86 -- I am running it on a Thinkpad X200 as well as under VirtualBox -- and also versions that run hosted on Windows, 32-bit and 64-bit Linux and Mac OS X.
In Oberon System Implemented on a Low-Cost FPGA Board (2015) [pdf]
pjmlp·Jun 15, 2018
In addition to that, here are some other examples. Go in Fuchsia, https://fuchsia.googlesource.com/third_party/netstack/ Oberon in Oberon (network stack but not TCP/IP though) https://www.inf.ethz.ch/personal/wirth/ProjectOberon/Sources... http://www.projectoberon.com/ Active Oberon in A2 - BlueBottle OS (TCP/IP stack) https://github.com/btreut/a2/blob/48dcfc1f1a6ed2bec110ca3af3... https://github.com/btreut/a2 Mesa at Xerox PARC (Courier RPC, XNX) http://www.bitsavers.org/pdf/xerox/mesa/3.0_1977/listing/ Sing# on Singularity https://archive.codeplex.com/?p=singularity Start at sourceCode\sourceCode\base\Libraries\System.Net\Sockets
In Let's code a TCP/IP stack, 1: Ethernet & ARP (2016)

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