IBM 709
<computer> A computer made by IBM oriented toward scientific work. The
709 had the same basic architecture as the IBM 704 but with many I/O and
performance refinements over the 704.
The IBM 709 (like the 704) had 36-bit memory words, 15-bit addresses and
instructions with one address. A few index register instructions had the
infamous 15-bit decrement field in addition to the 15-bit address.
The IBM 7090 was a transistorised version of the 709.
[Difference between 704 and 709?]
(1999-01-19)
Nearby terms:
IBM 704 « IBM 7040 « IBM 705 « IBM 709 » IBM 7090 »
IBM 7094 » IBM 801
