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Meaning of IBM 709

 
Matching Terms:  ibm 704, ibm 7040, ibm 705, ibm 7090, ibm 7094

Computing Dictionary
 
 Definition: 

A computer made by ibm oriented towards 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.

 

 

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