Jeff’s IBM 1130 web site

IBM 1130 user group newsletters
The fabulous 1627 plotter
In 1972, The Cooper Union Computer Center
consisted of an IBM 1130 running BOS: Bernie's Operating System.
Bernard S. Greenberg went on to develop MULTICS.
2 IBM 1130s were donated to the college around 1980.
I used them extensively.
IBM 1130-1800 Binary Card Template
a clear plastic template held over the punched card to reveal the
54: 16 bit words in a packed format on the 12 row card.
NOT to be confused with the boot loader format or normal column-read format
(documented here as "card input" "Data Word Formats").
See here for more punched cards.



MARCH (the NJ computer museum) has several IBM 1130 magtapes.
David Gesswein read them and made them available here.
The tapes are


IBM 1130 SAC OEM manual: how to interface to the I/O bus! (just the cover so far)
File number 1130-19
Form GA26-3645-6
IBM 1130 Computing System
Storage Access Channel
Original Equipment Manufacturers' Information



selections from the IBM 1130 reference card
see the rest of the pocket reference cards on bitsavers

It used real core, was the size of a desk.
The console had lotsa blinkenlights and controls for debugging and maintenance.
The console panel and the mode switch with single clock step and single memory cycle!

Ads for the 1130

Outstanding questions

  1. Are there any examples of using "interrupt run",
    particularly sample source code and linking into DM2 using the proper hook?

  2. The user groups mention "smorgasboard '73" (SM '73)
    a disk platter full of shareware by Wil Baden.
    Does anyone have it? online?

  3. While scanning the IBM 1130 user group newsletters,
    I saw an announcement for the COMMON Fall Conference in Atlanta Sept 24,25,26, 1973
    Scheduled sessions included the IBM 1130, 1800, system 3, system 7.
    I wonder if anything exists: handouts, summary, proceedings.

Other IBM 1130 Web Sites