SDS 940 - Revision history

Jnc: /* External links */ canonical order

2025-07-21T07:52:01Z

‎External links: canonical order

Jnc: /* External links */ 940 Introduction

2025-01-07T12:55:40Z

‎External links: 940 Introduction

Larsbrinkhoff: 24-bit cat.

2023-07-11T08:00:50Z

24-bit cat.

Jnc: /* External links */ +Modifications to the SDS 930 Computer for the Implementation of Time-Sharing

2023-06-10T14:38:14Z

‎External links: +Modifications to the SDS 930 Computer for the Implementation of Time-Sharing

Jnc: /* External links */ +Butler W. Lampson lecture

2022-05-05T14:36:48Z

‎External links: +Butler W. Lampson lecture

Jnc: Upgrade a bit

2022-05-04T12:47:46Z

Upgrade a bit

Larsbrinkhoff: Bitsavers links.

2022-05-04T06:17:25Z

Bitsavers links.

New page

{{stub}}

==External links==

* Bitsavers:
** [http://bitsavers.org/pdf/sds/9xx/940/ SDS 940 documents.]
** [http://www.bitsavers.org/bits/SDS/9xx/ SDS 9xx programs.]
** [http://www.bitsavers.org/pdf/tymshare/SDS_940/ SDS 940 documents from Tymshare.]

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 ==External links==
 * [http://www.bitsavers.org/pdf/sds/9xx/940/ SDS 940] - documentation at Bitsavers
 ** [http://www.bitsavers.org/pdf/sds/9xx/940/980126A_940_TheoryOfOperation_Mar67.pdf SDS 940 Theory of Operation] - technical manual
 ** [http://www.bitsavers.org/bits/SDS/9xx/ SDS 9xx] - programs
 * [https://github.com/larsbrinkhoff/bcc-500/blob/master/text/SYSTEM-10%3A%20(DOCUMENTATION)/INTRO-940 940 Introduction]
 * [http://www.bitsavers.org/pdf/tymshare/SDS_940/ SDS 940] - documents from Tymshare

@@ Line 8: / Line 8: @@
 * [http://www.bitsavers.org/pdf/sds/9xx/940/ SDS 940] - documentation at Bitsavers
 ** [http://www.bitsavers.org/pdf/sds/9xx/940/980126A_940_TheoryOfOperation_Mar67.pdf SDS 940 Theory of Operation] - technical manual
-* [http://www.bitsavers.org/bits/SDS/9xx/ SDS 9xx] - programs
+** [http://www.bitsavers.org/bits/SDS/9xx/ SDS 9xx] - programs
 * [http://www.bitsavers.org/pdf/tymshare/SDS_940/ SDS 940] - documents from Tymshare
 ** [http://www.bitsavers.org/pdf/tymshare/SDS_940/102634499_Lampson_SDS940_Lectures.txt SDS 940 Lectures] - Butler W. Lampson covers, along with much else, the modifications to the 930

← Older revision		Revision as of 08:00, 11 July 2023
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	[[Category: Xerox Mainframes]]		[[Category: Xerox Mainframes]]
		+	[[Category: 24-bit Computers]]

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 ==External links==
 * [http://www.bitsavers.org/pdf/sds/9xx/940/ SDS 940] - documentation at Bitsavers
 ** [http://www.bitsavers.org/pdf/sds/9xx/940/980126A_940_TheoryOfOperation_Mar67.pdf SDS 940 Theory of Operation] - technical manual

@@ Line 9: / Line 9: @@
 * [http://www.bitsavers.org/bits/SDS/9xx/ SDS 9xx] - programs
 * [http://www.bitsavers.org/pdf/tymshare/SDS_940/ SDS 940] - documents from Tymshare
 [[Category: Xerox Mainframes]]

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-{{stub}}
+The '''SDS 940''' (renamed to '''XDS 940''' after [[Scientific Data Systems|SDS]] was purchased by Xerox and renamed 'XDS') was effectively an [[SDS 930]] [[mainframe]] upgraded with [[memory management]] hardware (including [[virtual memory]]) to allow it to be used for [[time-sharing]], using a derivative of the [[Berkeley Timesharing System]].
 ==External links==
-* Bitsavers:
+* [http://www.bitsavers.org/pdf/sds/9xx/940/ SDS 940] - documentation at Bitsavers
-** [http://bitsavers.org/pdf/sds/9xx/940/ SDS 940 documents.]
+** [http://www.bitsavers.org/pdf/sds/9xx/940/980126A_940_TheoryOfOperation_Mar67.pdf SDS 940 Theory of Operation] - technical manual
-** [http://www.bitsavers.org/bits/SDS/9xx/ SDS 9xx programs.]
+* [http://www.bitsavers.org/bits/SDS/9xx/ SDS 9xx] - programs
-** [http://www.bitsavers.org/pdf/tymshare/SDS_940/ SDS 940 documents from Tymshare.]
+* [http://www.bitsavers.org/pdf/tymshare/SDS_940/ SDS 940] - documents from Tymshare