From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=HTML_MESSAGE, MAILING_LIST_MULTI,NICE_REPLY_A,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 16789 invoked from network); 2 Apr 2021 16:40:50 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 2 Apr 2021 16:40:50 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 713949C9FD; Sat, 3 Apr 2021 02:40:46 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 96B209C641; Sat, 3 Apr 2021 02:39:56 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id A2B179C641; Sat, 3 Apr 2021 02:39:53 +1000 (AEST) Received: from mail-pf1-f177.google.com (mail-pf1-f177.google.com [209.85.210.177]) by minnie.tuhs.org (Postfix) with ESMTPS id 560E29C63F for ; Sat, 3 Apr 2021 02:39:52 +1000 (AEST) Received: by mail-pf1-f177.google.com with SMTP id l123so2402805pfl.8 for ; Fri, 02 Apr 2021 09:39:52 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:reply-to:subject:to:references:from:organization :message-id:date:user-agent:mime-version:in-reply-to :content-language; bh=dIErgwz1QuX53L1kCuOEExpQRG0JcpbbfbiP3Is/1a4=; b=HO8T+mb1MHZ1QbZ+hSqpYN6S2Sz7MfPyT96a3f4/RY+jIluZN/3jKeMdsilsPlpQkF dTTsvZMYEg8I8G4Nz4MzQqwrNXz8ESjlHKkeP5x3aqB37I3utPrRCUUAfy96zXz3aYPc VTAa9rln+AyqWA3dZXZRTjORSVieiaqvIFCOaLIz4Pw6IHgvWVCMHYVhHha1yHoeJMJj 9/hTyW9EZ1O9uCB9LY/DmoNn7DOLAZaXowSyJXVZpol4K3mBP9YT/Z9UAC7WSRfFjGux RWLE9vwDP1QEjMwhx8OHJ+JIwNtu58Bo7DPBxXBlaTagi0PVzPiG7h6EMfRqhgCfyNam EpWg== X-Gm-Message-State: AOAM531Ve4W2WxSvYU5IPJ6QmrFzTMStHiFXJSKWgBTML3nrE9pu5R6I KNxyPuir/1ZLSeEziWesBIN2Q+RAL2ZN9A== X-Google-Smtp-Source: ABdhPJxOYhg5oni8EBT/q1V5RRN0spl2xW7zFBHhDZ9FF7CcQW8yskfZ/lkcDSZTRi4nSUcIHcCWag== X-Received: by 2002:a62:1953:0:b029:20a:d94d:dd69 with SMTP id 80-20020a6219530000b029020ad94ddd69mr12796954pfz.44.1617381591380; Fri, 02 Apr 2021 09:39:51 -0700 (PDT) Received: from ?IPv6:2601:601:a080:30:9de6:e236:1a12:49b8? ([2601:601:a080:30:9de6:e236:1a12:49b8]) by smtp.gmail.com with ESMTPSA id b126sm8605071pga.91.2021.04.02.09.39.50 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 02 Apr 2021 09:39:50 -0700 (PDT) To: tuhs@minnie.tuhs.org References: <20210401145025.GA1202@naleco.com> From: Heinz Lycklama Organization: Open Systems Technology Associates Message-ID: Date: Fri, 2 Apr 2021 09:39:49 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.9.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------2E2A5BACD399AB9B8D59B16B" Content-Language: en-US Subject: Re: [TUHS] Zombified SCO comes back from the dead, brings trial back to life against IBM X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: heinz@osta.com Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" This is a multi-part message in MIME format. --------------2E2A5BACD399AB9B8D59B16B Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit The first version of AIX for the IBM RT PC was developed by INTERACTIVE Systems Corp. under contract to IBM. The second version of AIX was developed by Locus Computing. Some brief history can be found here:     1. https://en.wikipedia.org/wiki/Interactive_Systems_Corporation     2. https://en.wikipedia.org/wiki/IBM_AIX#IBM_RT_PC Heinz On 4/2/2021 9:03 AM, Clem Cole wrote: > > > On Thu, Apr 1, 2021 at 11:54 PM Wesley Parish > wrote: > >  I don't think anybody was even thinking of porting any of > the *BSD to IBM mainframes till much later, am I right? > > No.   BSD was very much on IBM's radar in the late 1970s and 1980s. > > Long before Linus released Linux into the wild in 1990 for the >>386<< > much less any other ISA, IBM had been shipping as a product AIX/370 > (and AIX/PS2 for the 386); which we developed at Locus for them.  The > user-space was mostly System V, the kernel was based on BSD (4.1 > originally) pluis a great deal of customization, including of course > the Locus OS work, which IBM called TCF - the transparent computing > facility.  It was very cool you could cluster 370s and PS/2 and from > >>any<< node run a program of either ISA.   It has been well discussed > in this forum, previously. > > A for AIX/370 a quick history which Charlie can fill in more from the > IBM side, was that in the last 60s and early 70s, IBM had a strange > hold on the education/research market with the S/360; but lost it > because of the lack of timesharing to DEC and PDP-10 based systems as > IBM was more and more focused on the commercial sector where there was > much more money to be made.   But ... there was a drive in the IBM > educational/research team to be able to reenter that market and Locus > was hired to develop AIX/370 (and later PS2) as it was felt that UNIX > was considered an important offering for those customers.  After it > was released as a product, it turned out purchasing AIX/370 was > exceedingly difficult (for a number of reasons), although it was > extremely well received by those that ran it, but getting it was > difficult.  In fact, I have been told by folks that there at the time, > that using TCF was an important feature here at Intel for the success > of the simulation for the 486 and Pentium. > > Again, Charlie can tell you the history but IBM also developed AIX for > the RS/6000 which was the same OS (only different) from IBM Austin(no > TCF, but supported DS which was cool in its own right). Locus was > actually contracted to develop a UNIX subsystem for the AS/400 also, > but I'm not sure if that ever shipped.  I had left Locus and hadgoneto > DEC by then. --------------2E2A5BACD399AB9B8D59B16B Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit The first version of AIX for the IBM RT PC was developed by INTERACTIVE Systems Corp.
under contract to IBM. The second version of AIX was developed by Locus Computing.
Some brief history can be found here:
    1. https://en.wikipedia.org/wiki/Interactive_Systems_Corporation
    2. https://en.wikipedia.org/wiki/IBM_AIX#IBM_RT_PC

Heinz


On 4/2/2021 9:03 AM, Clem Cole wrote:


On Thu, Apr 1, 2021 at 11:54 PM Wesley Parish <wobblygong@gmail.com> wrote:
 I don't think anybody was even thinking of porting any of
the *BSD to IBM mainframes till much later, am I right?
No.   BSD was very much on IBM's radar in the late 1970s and 1980s.

Long before Linus released Linux into the wild in 1990 for the >>386<< much less any other ISA, IBM had been shipping as a product AIX/370 (and AIX/PS2 for the 386); which we developed at Locus for them.  The user-space was mostly System V, the kernel was based on BSD (4.1 originally) pluis a great deal of customization, including of course the Locus OS work, which IBM called TCF - the transparent computing facility.  It was very cool you could cluster 370s and PS/2 and from >>any<< node run a program of either ISA.   It has been well discussed in this forum, previously.

A for AIX/370 a quick history which Charlie can fill in more from the IBM side, was that in the last 60s and early 70s, IBM had a strange hold on the education/research market with the S/360; but lost it because of the lack of timesharing to DEC and PDP-10 based systems as IBM was more and more focused on the commercial sector where there was much more money to be made.   But ... there was a drive in the IBM educational/research team to be able to reenter that market and Locus was hired to develop AIX/370 (and later PS2) as it was felt that UNIX was considered an important offering for those customers.  After it was released as a product, it turned out purchasing AIX/370 was exceedingly difficult (for a number of reasons), although it was extremely well received by those that ran it, but getting it was difficult.  In fact, I have been told by folks that there at the time, that using TCF was an important feature here at Intel for the success of the simulation for the 486 and Pentium. 

Again, Charlie can tell you the history but IBM also developed AIX for the RS/6000 which was the same OS (only different) from IBM Austin (no TCF, but supported DS which was cool in its own right).  Locus was actually contracted to develop a UNIX subsystem for the AS/400 also, but I'm not sure if that ever shipped.  I had left Locus and had gone to DEC by then.

--------------2E2A5BACD399AB9B8D59B16B--