UNIX/370 - Revision history

Jnc: /* External links */ Update Bell Labs URLs (blast Nokia)

2025-07-01T01:09:08Z

‎External links: Update Bell Labs URLs (blast Nokia)

Jnc: Cat caps err

2023-08-05T03:26:04Z

Cat caps err

Jnc: /* External links */ +Multiprocessor UNIX Operating Systems

2023-07-20T17:50:48Z

‎External links: +Multiprocessor UNIX Operating Systems

Jnc: Somewhat stubby, but has the basics, and links to more

2023-07-19T19:48:33Z

Somewhat stubby, but has the basics, and links to more

New page

'''UNIX/370''' was the name adopted by two separate efforts to run [[UNIX]] on an [[IBM System/370]] class machine.

The first, at [[Bell Laboratories]], ran [[Unix Seventh Edition]] as a 'supervisor' to [[user]] [[process]]es, under the [[TSS/370]] Resident Supervisor. This approach, instead of running it directly on the bare hardware, was taken because System/370 machines had characteristics which made doing so un-attractive. For one, the [[input/output|I/O]] system of the System/370 was quite complex, with a large number of [[channel]]s, [[device controller]]s, and [[peripheral|devices]], which could be interconnected in multiple ways. For another, [[International Business Machines|IBM]] [[field service]] expected the [[operating system]] to provide error logs in a particular format, which UNIX running on the bare hardware would have to provide. The TSS-based approach was successful, and Bell ran the result on a number of large System/370 machines.

The second, originally at Princeton University, proposed to run [[UNIX Sixth Edition]] under [[VM/370]]; this was made to run in a preliminary manner. The project then moved (along with its progenitor) to [[Amdahl]], where it ran on an [[Amdahl 470V/6]], under VM/370; the result was named 'Au'. (Amdahl later got UNIX Version 7, and then announced [[Amdahl UTS]].)

==External links==

* [https://charles.the-haleys.org/papers/Alternate_Implementation_Proposal_for_Unix370.pdf Alternate Implementation Proposal for Unix/370] January 2, 1979
* [https://drive.google.com/file/d/1zrnKJ7fT1yrt_9r8QJHtZm7cI9EQEw76/view UNIX/370: A Feasibility Study] January 23, 1979
* [https://www.bell-labs.com/usr/dmr/www/otherports/ibm.html A UNIX System Implementation for System/370] - the finished Bell system

* [https://akapugs.blog/2018/05/12/370unixpart1/ The Roots of UNIX for the IBM Mainframe (part 1)]
* [https://akapugs.blog/2018/05/12/370unixpart2/ The Roots of UNIX for the IBM Mainframe (part 2)]
* [https://akapugs.blog/2018/05/12/370unixpart3/ The Roots of UNIX for the IBM Mainframe (part 3)]
* [https://drive.google.com/file/d/1cB2eqTwmicj1AQOiULDZjED5Rq-_V4N4/view Notes on Au Performance or How to get the Pb out of Au]

[[Category: UNIX OS's]]

@@ Line 19: / Line 19: @@
 * [https://drive.google.com/file/d/1cB2eqTwmicj1AQOiULDZjED5Rq-_V4N4/view Notes on Au Performance or How to get the Pb out of Au]
-[[Category: UNIX OS's]]
+[[Category: Unix OS's]]
 [[Category: IBM Operating Systems]]

@@ Line 11: / Line 11: @@
 * [https://charles.the-haleys.org/papers/Alternate_Implementation_Proposal_for_Unix370.pdf Alternate Implementation Proposal for Unix/370] January 2, 1979
 * [https://drive.google.com/file/d/1zrnKJ7fT1yrt_9r8QJHtZm7cI9EQEw76/view UNIX/370: A Feasibility Study] January 23, 1979
-* [https://www.bell-labs.com/usr/dmr/www/otherports/ibm.html A UNIX System Implementation for System/370] - the finished Bell system
+* [https://www.nokia.com/bell-labs/about/dennis-m-ritchie/otherports/ibm.html A UNIX System Implementation for System/370] - the finished Bell system
 <!-- * [http://squoze.net/UNIX/bltj/06771917.pdf A UNIX System Implementation for System/370] - the finished Bell system -->
 * [http://squoze.net/UNIX/bltj/06771916.pdf Multiprocessor UNIX Operating Systems] - mostly general, but has some UNIX/370 content

@@ Line 4: / Line 4: @@
 The second, originally at Princeton University, proposed to run [[UNIX Sixth Edition]] under [[VM/370]]; this was made to run in a preliminary manner. The project then moved (along with its progenitor) to [[Amdahl]], where it ran on an [[Amdahl 470V/6]], under VM/370; the result was named 'Au'. (Amdahl later got UNIX Version 7, and then announced [[Amdahl UTS]].)
 ==External links==
@@ Line 11: / Line 13: @@
 * [https://www.bell-labs.com/usr/dmr/www/otherports/ibm.html A UNIX System Implementation for System/370] - the finished Bell system
 <!-- * [http://squoze.net/UNIX/bltj/06771917.pdf A UNIX System Implementation for System/370] - the finished Bell system -->
 * [https://akapugs.blog/2018/05/12/370unixpart1/ The Roots of UNIX for the IBM Mainframe (part 1)]
 * [https://akapugs.blog/2018/05/12/370unixpart2/ The Roots of UNIX for the IBM Mainframe (part 2)]
@@ Line 17: / Line 20: @@
 [[Category: UNIX OS's]]