The IBM1130 was a small business and scientific computer that was introduced by IBM in 1965. A typical system had 8K words of 16 bit memory, a single 1MB disk drive, a card read-punch, a line printer, an operator keyboard, and a console Selectric printer. 

Many 1130 users have very fond memories of the system; it had a high performance to cost ratio and was often directly accessible by its users, making the 1130 a sort of prototype for a "personal computer". 

Set up in conjunction with (which has many manuals, a list of known 1130s, and an 1130 emulator that runs with DMS2, FORTRAN, RPG, APL, and LISP), this group provides a place to discuss all aspects of the system -- hardware, software, memories or stories. 

Beyond that, we can also use this group as a coordination point for hobbyist projects or other related activities. 

If you are wondering if any 1130s are alive today, there are a couple. First, see the page on There is one being restored in California by Carl Claunch. See for more information.


Showing 1-20 of 284 topics
Re: [IBM1130] Big Data | Data Science: Writing Code and Exploring Data Joseph Ambrose 10/14/16
IBM 1130 COBOL sort subroutinesb John McKee 10/5/16
Found a disk for one of these!! Blake Phillips 9/13/16
Current Simulator Maintainer? Steven Zoppi 8/25/16
IBM 1130 Development 8/24/16
C# 1130 emulator moved to .net core Bob Flanders 8/18/16
029 keypunch available Clare 8/10/16
History of 1130 emulators Eddy Quicksall 8/8/16
Problem with 1130 simulator from Roland Langfeld 8/7/16
DM2 source Eddy Quicksall 8/6/16
DUP STORECI Brian Knittel 8/6/16
one more note Brian Knittel 8/5/16
Slow 1403 can be fast if you know what do do Eddy Quicksall 8/5/16
Solution to Extended Precision Natural Log (ELN) Issue Steven Zoppi 8/3/16
Copyright ---dcm 8/2/16
The curious case of the STORECI in the nighttime Brian Knittel 8/2/16
Copy of real disk cartridge image from my 1130 Carl Claunch 7/30/16
Please edit your posts David Cortesi 7/30/16
EMU compiler Eddy Quicksall 7/30/16
1130 over TCP/IP problem Eddy Quicksall 7/29/16
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