IBM 7090 - Revision history

Jnc: /* External links */ trim URL

2025-04-22T23:30:21Z

‎External links: trim URL

Jnc: /* External links */ + one from Paul Allen's collection at the LCM

2025-04-21T13:31:31Z

‎External links: + one from Paul Allen's collection at the LCM

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use new inst speed

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2018-10-19T12:17:07Z

Correct cat

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Avoid redir

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2018-06-12T03:09:29Z

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2017-11-13T14:48:55Z

Add link

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2017-11-13T14:47:57Z

Add more about construction type

Jnc: Add data, links, further reading

2017-11-13T01:12:56Z

Add data, links, further reading

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2017-11-12T00:47:56Z

mention SABRE use, performance over 709

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 * [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]
-* [https://onlineonly.christies.com/s/firsts-history-computing-paul-g-allen-collection/ibm-7090-mainframe-computer-107/230044?ldp_breadcrumb=back An IBM 7090 mainframe computer] - from Paul Allen's collection at the [[Living Computer Museum|LCM]], includes several images
+* [https://onlineonly.christies.com/s/firsts-history-computing-paul-g-allen-collection/ibm-7090-mainframe-computer-107/230044 An IBM 7090 mainframe computer] - from Paul Allen's collection at the [[Living Computer Museum|LCM]], includes several images
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 [[Category: IBM Mainframes]]

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 * [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]
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 [[Category: IBM Mainframes]]

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 <!-- | virtual address = x bits -->
 | logic type = [[Standard Modular System|SMS]] cards using alloy-junction [[transistor]]s
-<!-- | design type =  -->
+<!-- | design type = -->
-| clock speed = 4.4 µsec (basic add instruction)
+| instruction speed = 4.4 µsec (basic add)
 | memory speed = 2.2 µsec
 <!-- | memory mgmt = bounds register -->

@@ Line 40: / Line 40: @@
 * [http://www.frobenius.com/7090.htm IBM 7090/94 Architecture]
-{{stub}}
+{{semi-stub}}
-[[Category:IBM Mainframes]]
+[[Category: IBM Mainframes]]

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 It was designed hurriedly to meet the requirements of Sylvania, the data processing subcontractor for the [[BMEWS]] missile warning [[radar]] network, which was under a mandate to use transistor computers.
-For this reason, it relied heavily on engineering from the [[STRETCH]] project; units such as power supplies, back panels and the memory unit were transplanted from STRETCH.
+For this reason, it relied heavily on engineering from the [[IBM 7030 Stretch]] project; units such as power supplies, back panels and the memory unit were transplanted from Stretch.
 In addition to its use for the ground-breaking [[Compatible Time-Sharing System‎‎|CTSS]] [[operating system]], a pair of 7090's were used in the equally influential American Airlines [[SABRE]] [[real-time]] airline reservation system.

← Older revision		Revision as of 03:09, 12 June 2018
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−	[[Category:IBM ~~Computers~~]]	+	[[Category:IBM Mainframes]]

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 * [http://www-03.ibm.com/ibm/history/exhibits/mainframe/mainframe_PP7090.html 7090 Data Processing System] - IBM Archive page
 * [http://www.quadibloc.com/comp/cp0309.htm From the IBM 704 to the IBM 7094]
 {{stub}}
 [[Category:IBM Computers]]

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 | physical address = 15 bits (32K words)
 <!-- | virtual address = x bits -->
-| logic type = alloy-junction [[transistor]]s
+| logic type = [[Standard Modular System|SMS]] cards using alloy-junction [[transistor]]s
 <!-- | design type =  -->
 | clock speed = 4.4 µsec (basic add instruction)
 | memory speed = 2.2 µsec
 <!-- | memory mgmt = bounds register -->
-| operating system = SOS, IBSYS, IBJOB, [[CTSS]]
+| operating system = SOS, IBSYS, IBJOB, FMS, [[CTSS]]
 | predecessor = [[IBM 709]]
 | successor = [[IBM 7094]]

@@ Line 2: / Line 2: @@
 | name = IBM 7090
 | manufacturer = [[International Business Machines]]
-<!-- | year announced = -->
+| year announced = December, 1958
 | year first shipped = November, 1959
-<!-- | year discontinued = -->
+| year discontinued = July, 1969
 | form factor = [[mainframe]]
 | word size = 36 bits
-<!-- | physical address = x bits (K words) -->
+| physical address = 15 bits (32K words)
 <!-- | virtual address = x bits -->
-| logic type = [[transistor]]s
+| logic type = alloy-junction [[transistor]]s
 <!-- | design type =  -->
-<!-- | clock speed =  µsec (basic instructions) -->
+| clock speed = 4.4 µsec (basic add instruction)
 | memory speed = 2.2 µsec
 <!-- | memory mgmt = bounds register -->
@@ Line 17: / Line 17: @@
 | predecessor = [[IBM 709]]
 | successor = [[IBM 7094]]
-<!-- | price = US$30K (8KW system) -->
+| price = US$2.9M (and up)
 }}
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 It was upwardly compatible with its [[vacuum tube]] technology predecessor, the [[IBM 709]]. It had a performance of six times that of a 709, but only cost one third more.
-It relied heavily on engineering from the [[STRETCH]] project; units such as power supplies, back panels and the memory unit were transplanted from STRETCH.
+It was designed hurriedly to meet the requirements of Sylvania, the data processing subcontractor for the [[BMEWS]] missile warning [[radar]] network, which was under a mandate to use transistor computers.
-A pair of 7090's were used in the American Airlines [[SABRE]] [[real-time]] airline reservation system.
+For this reason, it relied heavily on engineering from the [[STRETCH]] project; units such as power supplies, back panels and the memory unit were transplanted from STRETCH.
 {{stub}}
 [[Category:IBM Computers]]

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 The '''IBM 7090''' was IBM's first commercial [[transistor]] scientific [[mainframe]] (built at a time when computers for scientific and business computing used separate [[instruction set]]s).
-It was upwardly compatible with its [[vacuum tube]] technology predecessor, the [[IBM 709]]. It relied heavily on engineering from the [[STRETCH]] project; units such as power supplies, back panels and the memory unit were transplanted from STRETCH.
+It was upwardly compatible with its [[vacuum tube]] technology predecessor, the [[IBM 709]]. It had a performance of six times that of a 709, but only cost one third more.
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