| slovo | definícia |
ibm 709
(foldoc) | IBM 709
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)
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| | podobné slovo | definícia |
ibm 709
(foldoc) | IBM 709
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)
|
ibm 7090
(foldoc) | IBM 7090
A transistorised version of the IBM 709 which was
a very popular high end computer in the early 1960s. The 7090
had 32Kbytes of 36-bit core memory and a hardware {floating
point unit}. Fortran was its most popular language, but it
supported many others. It was later upgraded to the {IBM
7094}, and a scaled down version, the IBM 7040 was also
introduced.
IBM 7090s controlled the Mercury and Gemini space flights, the
Balistic Missile Early Warning System (until well into the
1980s), and the CTSS time sharing system at MIT.
The 7090 was not good at unit record I/O, so in small
configurations an IBM 1401 was used for SPOOL I/O and in
large configurations (such as a 7090/94) a 7040/44 would be
directly coupled and dedicated to handling printers and {card
readers}. (See the film Dr Strangelove).
(1999-01-19)
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ibm 7094
(foldoc) | IBM 7094
A faster version of the IBM 7090 with more {index
registers}.
(1997-02-23)
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