S1130 – Ibm 1130 Emulator in C#

Posted2 months agoActive2 months ago

rbanffy

36 points

10 comments

github.comTechstory

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Ibm 1130EmulatorC#Retrocomputing

Key topics

Ibm 1130

Emulator

Retrocomputing

The S1130 project is an IBM 1130 emulator written in C# that has been updated with a web frontend, sparking interest and appreciation from the HN community for its technical achievement and nostalgic value.

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Discussion Activity

Moderate engagement

First comment

Peak period

Day 8

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Key moments

01Story posted
Oct 27, 2025 at 9:36 AM EDT
2 months ago
Step 01
02First comment
Nov 3, 2025 at 5:30 PM EST
7d after posting
Step 02
03Peak activity
8 comments in Day 8
Hottest window of the conversation
Step 03
04Latest activity
Nov 5, 2025 at 3:20 AM EST
2 months ago
Step 04

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Discussion (10 comments)

Showing 10 comments

gwbas1c

2 months ago

2 replies

Screenshots?

Also, it's hard to understand "what" this is emulating. Does it start and boot up? Do I need to find the OS somewhere? Can I run any IBM 1130 program, or do I need to provide some other kind of virtual something? How would I actually go about running a program written for the IBM 1130?

timbit42

2 months ago

1 reply

The IBM 1130 doesn't have a screen.

dmitrygr

2 months ago

it supported the IBM 2250 model 4 graphics display unit

sedatk

2 months ago

It seems to be a link to a development branch. The authors may not have intended this to be shared in its current state.

sigfubar

2 months ago

2 replies

Is it all vibe coded? Looks and feels like LLM slop.

wvenable

2 months ago

1 reply

The Turing test for code: LLM "slop" is now indistinguishable from code written by human 6 years ago.

qubex

2 months ago

Another way to put it is that six years ago, some developers unknowingly failed the Turing Test circa 2025.

vips7L

2 months ago

There are commits from over 6 years ago in there.

m463

2 months ago

1 reply

First computer I used was an ibm 1130. punched cards and green-bar line printer paper. I remember it didn't have much memory, so I had to read/write data to a (giant sized, small capacity) hard disk. All Fortran.

petejansson

2 months ago

Same here, except I also wrote assembly and had teammates who wrote RPG

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ID: 45720919Type: storyLast synced: 11/20/2025, 1:23:53 PM

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