IBM 7094: Difference between revisions
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Final CTSS host |
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| logic type = [[Standard Modular System|SMS]] cards using alloy-junction [[transistor]]s | | logic type = [[Standard Modular System|SMS]] cards using alloy-junction [[transistor]]s | ||
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| | | cycle time = 2.0 µsec (7094 I)<br>1.4 µsec (7094 II) | ||
| memory speed = 2.0 µsec | | memory speed = 2.0 µsec | ||
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| price = roughly US$3.5M | | price = roughly US$3.5M | ||
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The '''IBM 7094''' was IBM's last commercial scientific [[mainframe]] (built at a time when computers for scientific and business computing used separate [[instruction set]]s). | The '''IBM 7094''' was IBM's last commercial scientific [[mainframe]] (built at a time when computers for scientific and business computing used separate [[instruction set]]s). | ||
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Total production amounted to 130 7094 I's, and 125 7094 II's. | Total production amounted to 130 7094 I's, and 125 7094 II's. | ||
The 7094 was the final IBM model upon which [[Compatible Time-Sharing System|CTSS]] ran. | |||
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==Further reading== | ==Further reading== | ||
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* [http://www.quadibloc.com/comp/cp0309.htm From the IBM 704 to the IBM 7094] | * [http://www.quadibloc.com/comp/cp0309.htm From the IBM 704 to the IBM 7094] | ||
* [http://www.frobenius.com/7090.htm IBM 7090/94 Architecture] | * [http://www.frobenius.com/7090.htm IBM 7090/94 Architecture] | ||
* [https://people.csail.mit.edu/saltzer/Multics/CTSS-Documents/RPQs/RPQs.html IBM 7094 Hardware Modifications for CTSS (RPQs)] | |||
[[Category: IBM Mainframes]] | [[Category: IBM Mainframes]] | ||
Latest revision as of 14:27, 11 September 2026
| IBM 7094 | |
| Manufacturer: | International Business Machines |
|---|---|
| Year Announced: | January, 1962 |
| Year Discontinued: | July, 1969 |
| Form Factor: | mainframe |
| Word Size: | 36 bits |
| Logic Type: | SMS cards using alloy-junction transistors |
| Cycle Time: | 2.0 µsec (7094 I) 1.4 µsec (7094 II) |
| Memory Speed: | 2.0 µsec |
| Physical Address Size: | 15 bits (32K words) |
| Operating System: | SOS, IBSYS, IBJOB, FMS, CTSS |
| Predecessor(s): | IBM 7090 |
| Successor(s): | none |
| Price: | roughly US$3.5M |
The IBM 7094 was IBM's last commercial scientific mainframe (built at a time when computers for scientific and business computing used separate instruction sets).
It had about 1.4-2.4 time the computer power of its predecessor, the IBM 7090. It was upwardly compatible with the 7090, but did have extra index registers (going from three to seven), and hardware double-precision floating point support.
It appeared in two models: the original 7094 (sometimes known as the 7094 I); and the 7094 II, announced in May, 1963, with the first installation in April, 1964.
The latter had about twice the speed of the original; due in part to the introduction of pipeline techniques (pioneered by the IBM 7030 Stretch), but also a slightly faster clock.
Total production amounted to 130 7094 I's, and 125 7094 II's.
The 7094 was the final IBM model upon which CTSS ran.
Further reading
- Charles J. Bashe, Lyle R. Johnson, John H. Palmer, Emerson W. Pugh, IBM's Early Computers, MIT Press, Cambridge, 1986
