pkimpel/retro-1620

Web-based emulator and operating environment for the IBM 1620 Model-2 computer system.

Learning & listsJavaScript#emulator#ibm#1620#model-2

1.9 Steady Magnitude out of 10 — how fast interest is growing, not a quality score. Star growth looks organic. Data as of September 23, 2026, 21:52 UTC.

Open on Seismograph Open on GitHub

About the project

Web-based emulator and operating environment for the IBM 1620 Model-2 computer system, reproducing its architecture and peripherals in the browser. The project also aims to recover as much surviving software for the system as possible.

Useful for

Run an IBM 1620 Model-2 emulation in the browser without installing software
Study the 1620 two-address architecture and instruction set interactively
Run recovered 1620 software from the bitsavers archive

README summarized by DeepSeek V4.1 Flash. Details may be inaccurate.

Why it’s trending

5 stars so far today, about 5 expected by the end of the day.
Hacker News: “Web-based IBM 1620 emulator and IPL-V from 1963” — 37 points, 21 h ago.

Stars per day

Bars are daily stars, the line is the usual pace. Red marks spike days.

Numbers

Total stars: 12
Today: 5 · ≈ 6 by evening
Forks: 1
Issues and pull requests: 21
Watchers: 2
Language: JavaScript
License: MIT
Created: July 19, 2022
Last push: September 22, 2026

Star trust

Growth looks organic: forks and discussion are in line with active projects, and stars arrive unevenly, the way people give them.

These are heuristics, not a verdict: we judge by the repository’s behavior, not by a list of stargazers.

Hacker News discussions

Web-based IBM 1620 emulator and IPL-V from 196337 points, September 23, 2026

Spotted in

September 23, 2026Spotted on Hacker News

README badge

Paste it into your README — the badge shows the current magnitude and links to this page.

[![Seismograph](https://gitnova.dev/badge/pkimpel/retro-1620.svg?lang=en)](https://gitnova.dev/en/r/pkimpel/retro-1620)

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