Talk:IBM 1130

From Wikipedia, the free encyclopedia

Earlier drafts referred to the 16thbit being used for indirect addressing. That is incorrect. The indirect bit is in the instruction format, not the address. Addressing was 15bits (32K 16bit WORDS), addresses were signed so address arithmetic makes sense. KymFarnik 03:08, 2 April 2007 (UTC)

[edit] I remember it well . . .

When I was at Waikato University in the late 70s/early 80s, there was an 1130 out the back. It was already obsolete then and had been replaced by a PDP 11/70 and an 11/34. It was fascinating, with this great big back panel covered in blinking lights, and the golf-ball typewriter, and great big disk cartridges that seemed to hold about 3 bits of information! For the fun of it I wrote a 4x4x4 noughts and crosses game on it in Fortran (I think) - it worked pretty well, although it relied on reprinting the position after each move. I don't think I've got a listing of it any more, though. I have since written a new game in Delphi (nDm) loosely based on it to run under Windows. Pedrocelli 01:11, 18 September 2007 (UTC)