Web-based IBM 1620 emulator and IPL-V from 1963

📝 Discussion Summary (Click to expand)

Nostalgia and personal impact – Many commenters recall the IBM 1620 as a formative experience that shaped their careers.

“A blast from the past! An IBM 1620 was the very first computer I programmed, way back in 1969… That was a life‑changing experience as it led to me dropping out of my Physics degree and eventually going into a computing career.” – rzzzwilson
Historical significance and influence on later languages – The discussion highlights how IPL‑V (and its predecessors) seeded concepts that appear in modern languages like Lisp.

“IPL (I think actually IPL‑IV) was key to some early AI research… it's what inspired Lisp… you can see the seed of almost every programming language popular today in it.” – kragen
Humor, quirks, and community engagement – Users playfully nickname the machine, wonder about esoteric ports, and share anecdotes that keep the retro tech vibe alive.

“Has it been ported to TempleOS yet?” – shevy‑java
“Among older IBMers the 1620 (model 1) was known as CADET, for ‘Can't Add Doesn't Even Try’.” – fernly

🚀 Project Ideas

Generating project ideas…

A web platform that bundles an IBM 1620 emulator, the IPL‑V compiler, and interactive lessons for learning early computing concepts.
Core value: hands‑on experience with historic hardware and software to teach programming fundamentals and computer architecture.

Key	Value
Target Audience	CS students, educators, retro‑computing enthusiasts
Core Feature	Browser‑based emulator with guided lesson cards, code execution, and live memory/pipeline visualization
Tech Stack	React, TypeScript, WebAssembly (emulator ported via simh), Express backend for progress storage
Difficulty	Medium
Monetization	Hobby

HN commenters reminisced about programming the IBM 1620 and wanted to interact with IPL‑V; this lets them run it and see the Lisp seed in action.
Educators can adapt the lessons, and the community can contribute new emulators or tutorials, sparking discussion on historic computing pedagogy.

Tool that converts simple modern pseudocode into authentic IBM 1620 punch‑card decks, visualizes them as PNG/SVG, and feeds them directly into the retro‑1620 emulator.
Core value: bridges contemporary coding with the historic punch‑card input method, letting hobbyists create and share period‑accurate programs.

Key	Value
Target Audience	Retro‑computing hobbyists, educators, makers
Core Feature	Drag‑and‑drop editor mapping lines of code to punched columns, card‑feed simulation, one‑click execute in the emulator
Tech Stack	Svelte frontend, WebAssembly emulator, Canvas/SVG for card rendering, Node.js API for export
Difficulty	Medium
Monetization	Hobby

Commenters described the punch‑card experience and the “CADET” nickname; this tool recreates that tactile workflow digitally.
Practical for classroom demos, museum exhibits, or shareable retro artifacts, encouraging discussion on early input methods.

Online IDE supporting multiple vintage languages (IPL‑V, FORTRAN II, early Lisp, ALGOL 60) with selectable backends (emulators or interpreters) and instant execution.
Core value: lets programmers experiment with early language features, understand their influence, and prototype ideas in historic syntax.

Key	Value
Target Audience	Programming language enthusiasts, historians, curious developers
Core Feature	Multi‑language editor with syntax highlighting, one‑click run via appropriate emulator/interpreter, snippet sharing
Tech Stack	Monaco Editor, WebAssembly emulators (simh cores, f2c, JS Lisp), Express server for snippets
Difficulty	High
Monetization	Revenue-ready: Freemium (free basic, $5/mo for premium lessons and extra language packs)

The thread highlighted IPL‑V as the Lisp inspiration; users would love to see and tweak it side‑by‑side with FORTRAN II and early Lisp.
Enables language‑comparison tutorials and community contributions of new vintage backends, fostering rich discussion on language evolution.