Path: utzoo!attcan!uunet!lll-winken!lll-tis!ames!ncar!oddjob!gargoyle!att!ihnp4!ihlpe!res
From: res@ihlpe.ATT.COM (Rich Strebendt)
Newsgroups: comp.unix.wizards
Subject: Re: AT&T Joining OSF
Summary: IBM 360/67's
Message-ID: <3358@ihlpe.ATT.COM>
Date: 18 Aug 88 19:09:16 GMT
References: <347@spies.UUCP> <670025@hpclscu.HP.COM> <24355@bu-cs.BU.EDU> <1991@stpstn.UUCP>
Organization: AT&T Bell Laboratories - Naperville, Illinois
Lines: 23

In article <1991@stpstn.UUCP>, aad@stpstn.UUCP (Anthony A. Datri) writes:
> At one point IBM modified two (2) 360/65's to have
> virtual memory, and called it the 360/67, as a test to see if virtual
> memory would work.  CMU had one of them.  As I understand it, the 370
> is basically a 360 with vm.

Almost right.  There were a fair number of 360/67's and 370/168's
running the TSS 360/370 operating system.  The Bell Labs Indian Hill
computer center had (I believe) six /67's and /168's at one point being
used for hardware and software development for Electronic Switching
Systems.

To make the 360/67, a unit called the Direct Access Translator
(familiarly known as the DAT box) was added to a 360/65.  This hardware
was included in the 370 machines.  The DAT box could be turned off to
make the machine back into a /65.  At the Indian Hill Computation
Center when the 360/67 was introduced, it was used as a /67 during the
day running TSS, then was switched back to a /65 to help process the
backlogged work on the OS side of the computer center (as one of as
many as six slave processors on an ASP network).

				Rich Strebendt
				[iwsl6|ihlpe|ihaxa]!res
				[cuuxf|cuuxg]!iw1res!res