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?]Last updated: 1999-01-19
Nearby terms:
IBM 704 ♦ IBM 7040 ♦ IBM 705 ♦ IBM 709 ♦ IBM 7090 ♦ IBM 7094 ♦ IBM 801 ♦ IBM compatible
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