IBM 709 - Revision history

Jnc: use new inst speed

2022-08-09T00:19:06Z

use new inst speed

← Older revision		Revision as of 00:19, 9 August 2022
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	<!-- \| virtual address = x bits -->		<!-- \| virtual address = x bits -->
	\| logic type = [[vacuum tube]]s		\| logic type = [[vacuum tube]]s
	<!-- \| design type = -->		<!-- \| design type = -->
	\| ~~clock~~ speed = 24 μsec (basic add ~~instruction~~)		\| instruction speed = 24 μsec (basic add)
	\| memory speed = 12 μsec		\| memory speed = 12 μsec
	\| operating system = SOS, IBSYS, IBJOB		\| operating system = SOS, IBSYS, IBJOB

Jnc: Correct cat

2018-10-19T12:16:19Z

Correct cat

← Older revision		Revision as of 12:16, 19 October 2018
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	* [http://www.computer-history.info/Page4.dir/pages/IBM.704.dir/ The IBM 704 and 709 Systems]		* [http://www.computer-history.info/Page4.dir/pages/IBM.704.dir/ The IBM 704 and 709 Systems]

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	[[Category:IBM Mainframes]]		[[Category:IBM Mainframes]]

Jnc: fix cat

2018-06-12T03:08:54Z

fix cat

← Older revision		Revision as of 03:08, 12 June 2018
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	{{stub}}		{{stub}}

	[[Category:IBM ~~Computers~~]]		[[Category:IBM Mainframes]]

Jnc: Mention use for CTSS

2018-04-18T12:59:45Z

Mention use for CTSS

← Older revision		Revision as of 12:59, 18 April 2018
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	One peculiarity of the index [[register]]s was that there were three, selected by a 3-bit field in the [[instruction]], each register being selected by one bit; if more than one bit was set, the registers indicated were logically ORed together before being used!		One peculiarity of the index [[register]]s was that there were three, selected by a 3-bit field in the [[instruction]], each register being selected by one bit; if more than one bit was set, the registers indicated were logically ORed together before being used!

			One major advance pioneered on the 709 was [[time-sharing]]; the first time-sharing operating system, [[CTSS]], was first experimentally operated on a 709.

	Its lifetime was shortened by the switch to [[transistor]]s as the technology for computers.		Its lifetime was shortened by the switch to [[transistor]]s as the technology for computers.

Jnc: typo

2018-04-18T12:56:09Z

typo

← Older revision		Revision as of 12:56, 18 April 2018
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	Major advances over its predecessor, the [[IBM 704]], included [[indirect address]]ing, and [[channel]]s (called 'Data Synchronizers' at the time). A Data Synchronizer had two channels, to each of which could be attached a [[card reader]], [[card punch]] and [[printer]]; up to eight [[magnetic tape]] drives could be attached to a single channel.		Major advances over its predecessor, the [[IBM 704]], included [[indirect address]]ing, and [[channel]]s (called 'Data Synchronizers' at the time). A Data Synchronizer had two channels, to each of which could be attached a [[card reader]], [[card punch]] and [[printer]]; up to eight [[magnetic tape]] drives could be attached to a single channel.

	One ~~peculuarity~~ of the index [[register]]s was that there were three, selected by a 3-bit field in the [[instruction]], each register being selected by one bit; if more than one bit was set, the registers indicated were logically ORed together before being used!		One peculiarity of the index [[register]]s was that there were three, selected by a 3-bit field in the [[instruction]], each register being selected by one bit; if more than one bit was set, the registers indicated were logically ORed together before being used!

	Its lifetime was shortened by the switch to [[transistor]]s as the technology for computers.		Its lifetime was shortened by the switch to [[transistor]]s as the technology for computers.

Jnc: + ext link

2018-04-18T12:47:54Z

+ ext link

← Older revision		Revision as of 12:47, 18 April 2018
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	* [https://www-03.ibm.com/ibm/history/exhibits/mainframe/mainframe_PP709.html 709 Data Processing System] - IBM Archive page		* [https://www-03.ibm.com/ibm/history/exhibits/mainframe/mainframe_PP709.html 709 Data Processing System] - IBM Archive page
	* [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.computer-history.info/Page4.dir/pages/IBM.704.dir/ The IBM 704 and 709 Systems]

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	[[Category:IBM Computers]]		[[Category:IBM Computers]]

Jnc: add mem spd

2017-11-13T00:57:09Z

add mem spd

← Older revision		Revision as of 00:57, 13 November 2017
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	<!-- \| design type = -->		<!-- \| design type = -->
	\| clock speed = 24 μsec (basic add instruction)		\| clock speed = 24 μsec (basic add instruction)
	~~<!--~~ \| memory speed = x μsec ~~-->~~		\| memory speed = 12 μsec
	~~<!-- \| memory mgmt = bounds register -->~~
	\| operating system = SOS, IBSYS, IBJOB		\| operating system = SOS, IBSYS, IBJOB
	\| predecessor = [[IBM 704]]		\| predecessor = [[IBM 704]]

Jnc: Add data, links, info about index regs

2017-11-13T00:37:03Z

Add data, links, info about index regs

← Older revision		Revision as of 00:37, 13 November 2017
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	\| year announced = January, 1957		\| year announced = January, 1957
	<!-- \| year first shipped = -->		<!-- \| year first shipped = -->
	~~<!--~~ \| year discontinued = ~~-->~~		\| year discontinued = April, 1960
	\| form factor = [[mainframe]]		\| form factor = [[mainframe]]
	\| word size = 36 bits		\| word size = 36 bits
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	\| logic type = [[vacuum tube]]s		\| logic type = [[vacuum tube]]s
	<!-- \| design type = -->		<!-- \| design type = -->
	~~<!--~~ \| clock speed = μsec (basic ~~instructions~~) ~~-->~~		\| clock speed = 24 μsec (basic add instruction)
	<!-- \| memory speed = x μsec -->		<!-- \| memory speed = x μsec -->
	<!-- \| memory mgmt = bounds register -->		<!-- \| memory mgmt = bounds register -->
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	\| predecessor = [[IBM 704]]		\| predecessor = [[IBM 704]]
	\| successor = [[IBM 7090]]		\| successor = [[IBM 7090]]
	~~<!--~~ \| price = US$~~30K~~ (~~8KW system~~) ~~-->~~		\| price = US$2.6M (and up)
	}}		}}

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	Major advances over its predecessor, the [[IBM 704]], included [[indirect address]]ing, and [[channel]]s (called 'Data Synchronizers' at the time). A Data Synchronizer had two channels, to each of which could be attached a [[card reader]], [[card punch]] and [[printer]]; up to eight [[magnetic tape]] drives could be attached to a single channel.		Major advances over its predecessor, the [[IBM 704]], included [[indirect address]]ing, and [[channel]]s (called 'Data Synchronizers' at the time). A Data Synchronizer had two channels, to each of which could be attached a [[card reader]], [[card punch]] and [[printer]]; up to eight [[magnetic tape]] drives could be attached to a single channel.

			One peculuarity of the index [[register]]s was that there were three, selected by a 3-bit field in the [[instruction]], each register being selected by one bit; if more than one bit was set, the registers indicated were logically ORed together before being used!

	Its lifetime was shortened by the switch to [[transistor]]s as the technology for computers.		Its lifetime was shortened by the switch to [[transistor]]s as the technology for computers.

			==Further reading==

			* Charles J. Bashe, Lyle R. Johnson, John H. Palmer, Emerson W. Pugh, ''IBM's Early Computers'', MIT Press, Cambridge, 1986

			==External links==

			* [https://www-03.ibm.com/ibm/history/exhibits/mainframe/mainframe_PP709.html 709 Data Processing System] - IBM Archive page
			* [http://www.quadibloc.com/comp/cp0309.htm From the IBM 704 to the IBM 7094]

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	[[Category:IBM Computers]]		[[Category:IBM Computers]]

Jnc: +cat

2017-11-12T00:51:26Z

+cat

← Older revision		Revision as of 00:51, 12 November 2017
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			[[Category:IBM Computers]]

Jnc: An OK start

2017-11-11T17:36:51Z

An OK start

New page

{{Infobox Machine
| name = IBM 709
| manufacturer = [[International Business Machines]]
| year announced = January, 1957


| form factor = [[mainframe]]
| word size = 36 bits


| logic type = [[vacuum tube]]s




| operating system = SOS, IBSYS, IBJOB
| predecessor = [[IBM 704]]
| successor = [[IBM 7090]]

}}

The '''IBM 709''' was IBM's last major [[vacuum tube]] scientific [[mainframe]] (built at a time when computers for scientific and business computing used separate [[instruction set]]s). It was announced in January, 1957

Major advances over its predecessor, the [[IBM 704]], included [[indirect address]]ing, and [[channel]]s (called 'Data Synchronizers' at the time). A Data Synchronizer had two channels, to each of which could be attached a [[card reader]], [[card punch]] and [[printer]]; up to eight [[magnetic tape]] drives could be attached to a single channel.

Its lifetime was shortened by the switch to [[transistor]]s as the technology for computers.

{{stub}}