HackerReposA FIELD GUIDE TO OPEN SOURCE
ProSponsor the shelf♧ 0
← Back to top all-time
pkimpel
retro-b5500
JavaScript2015–2021
pkimpel / retro-b5500

retro-b5500

Web-based emulator and operating environment for the Burroughs B5500 computer system.

5Distinct people
5Mentions
0Explicit recommenders
81GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

Web-based emulator and operating environment for the Burroughs B5500 computer system.

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 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 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 year5 dated mentions

Observed mentions: 2015-09-30 22:23:07 UTC to 2021-01-28 15:56:11 UTC.

0122015-01-01 00:00:00 UTC to 2016-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments20152016-01-01 00:00:00 UTC to 2017-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2017-01-01 00:00:00 UTC to 2018-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-01-01 00:00:00 UTC to 2019-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments20182019-01-01 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): 0 mentions; 0 submissions, 0 comments2021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2021

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
20152015-01-01 00:00:00 UTC2016-01-01 00:00:00 UTC101
20162016-01-01 00:00:00 UTC2017-01-01 00:00:00 UTC202
20172017-01-01 00:00:00 UTC2018-01-01 00:00:00 UTC000
20182018-01-01 00:00:00 UTC2019-01-01 00:00:00 UTC101
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 UTC000
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC101

What Hacker News says

5 sources
Read the rest
atariverse.com/media/pdf/book/Pasc... The UNIX Time-Sharing System https://archive.org/download/bstj57-6-1905/bstj57-6-1905.pdf A Trip Down The Graphics Pipeline: The Homogeneous Perspective Transform http://cfile204.uf.daum.net/attach/272FF54D519C8D973525F4
In Let's Not Dumb Down the History of Computer Science (2014)
Now who will write something that allows that GTL source (or the equivalent) to run? It looks quite nice conceptually as the "program" is nicely separated from the "knowledge" and the program is just 360 lines: https://github.com/retro-software/B5500-software/blob/master... The documentation for the language is here: http://www.bitsavers.org/pdf/georgiaTech/GTL_Programmers_Ref... as http://retro-b5500.blogspot.com/2018/05/the-cube-library-tap... report: "GTL -- Georgia Tech Language. Another clone of Extended Algol by Martin Alexander at the Georgia Institute of Technology in Atlanta, Georgia. This compiler has significant extensions for strings, records, complex arithmetic, list processing, plex processing, and extended I/O features. Documentation is also available on bitsavers.org." I see also: https://github.com/pkimpel/retro-b5500 "We
Read the rest
b-based emulator and operating environment for the Burroughs B5500 computer system."
In 1971 B5500 Eliza clone written in Lispified Algol
Source-code here: https://github.com/pkimpel/retro-b5500 including Kildall's APL implementation (still needs to be proof read), but also note that Niklaus Wirth's programming language predecessor to Pascal known as Euler is there too. Another interesting piece of source-code you will find there too is a Burroughs B6500 emulator, B6500 MCP and B6500 ESPOL compiler written for the B5500. The B5500 was used by Burroughs as the development platform for the B6500 which was the follow-on from the B5000 family. You can see the B6500 emulator running in this short film: https://www.youtube.com/watch?v=KOElQuCqj0Y#t=3m37s I'm hoping we can re-create those few seconds of video once we have this B6500 software functional again.
In APL\B5500: The Language and Its Implementation – Gary A. Kildall (1970) [pdf]

MAKE YOURSELF AT HOME

A few shortcuts

/
Search the collection
?
Open this guide
Esc
Close dialogs and navigation

Your saved repositories and interests stay in this browser.