From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: 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=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: from minnie.tuhs.org (minnie.tuhs.org [50.116.15.146]) by inbox.vuxu.org (Postfix) with ESMTP id A00BC25AA2 for ; Mon, 8 Jul 2024 00:52:36 +0200 (CEST) Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id 3E4C3427B4; Mon, 8 Jul 2024 08:52:28 +1000 (AEST) Received: from exhmta12.bpe.bigpond.com (exhmta12.bpe.bigpond.com [203.42.40.156]) by minnie.tuhs.org (Postfix) with ESMTPS id 2478D425C2 for ; Mon, 8 Jul 2024 08:52:19 +1000 (AEST) Received: from exhprdcmr03 by exhprdomr12 with esmtp (envelope-from ) id 1sQajw-000ByU-2A for tuhs@tuhs.org; Mon, 08 Jul 2024 08:52:16 +1000 Received: from [110.141.193.233] (helo=aneurin.horsfall.org) by exhprdcmr03 with esmtp (envelope-from ) id 1sQajw-000DFt-1l for tuhs@tuhs.org; Mon, 08 Jul 2024 08:52:16 +1000 Received: from aneurin.horsfall.org (localhost [127.0.0.1]) by aneurin.horsfall.org (8.15.2/8.15.2) with ESMTP id 467M0lY4006537 for ; Mon, 8 Jul 2024 08:00:47 +1000 (EST) (envelope-from dave@horsfall.org) Received: from localhost (dave@localhost) by aneurin.horsfall.org (8.15.2/8.15.2/Submit) with ESMTP id 467M0k8O006534 for ; Mon, 8 Jul 2024 08:00:47 +1000 (EST) (envelope-from dave@horsfall.org) X-Authentication-Warning: aneurin.horsfall.org: dave owned process doing -bs Date: Mon, 8 Jul 2024 08:00:46 +1000 (EST) From: Dave Horsfall To: The Eunuchs Hysterical Society In-Reply-To: Message-ID: References: User-Agent: Alpine 2.21.9999 (BSF 287 2018-06-16) X-GPG-Public-Key: http://www.horsfall.org/gpgkey.pub X-GPG-Fingerprint: 05B4 FFBC 0218 B438 66E0 587B EF46 7357 EF5E F58B X-Home-Page: http://www.horsfall.org/ X-Witty-Saying: "chmod 666 the_mode_of_the_beast" MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-tce-ares-id: e{ca4b1b89-f55d-4b39-a4ee-393b1a8c8065}1 X-tce-spam-action: no action X-tce-spam-score: 0.0 X-Cm-Envelope: MS4xfG3oaI+v+qY0FCegN7EtJp4wsueDRqptx7NsKMbaWIlbB5BireV1D8uUdkvKViFeNr9GkGzUUJY6A6mtOXXjUJuAwVhTuN5SIJVLytkY9AJFLtg9H1ba AdyaCXUkPL7uavBUNY1wZouL8kld3oyK3BGDglVEbf/xqMdRkroaFmvj X-Cm-Analysis: v=2.4 cv=aPo7qq9m c=1 sm=1 tr=0 ts=668b1c20 a=tp40vz5QK/dVXQmd7GLw7w==:117 a=tp40vz5QK/dVXQmd7GLw7w==:17 a=ygdKRqXHGZFyRHux:21 a=kj9zAlcOel0A:10 a=4kmOji7k6h8A:10 a=wukHvHnRm8ASA267LWIA:9 a=CjuIK1q_8ugA:10 Message-ID-Hash: UK3BLL4WOQWXZTYP5KM4VGODIXYLYUIF X-Message-ID-Hash: UK3BLL4WOQWXZTYP5KM4VGODIXYLYUIF X-MailFrom: dave@horsfall.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-tuhs.tuhs.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: Anyone ever heard of teaching a case study of Initial Unix? List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On Fri, 5 Jul 2024, Peter Yardley wrote: > The DG Nova had a pretty nice architecture. 2 accumulators, 2 index > registers, program counter, status register. No stack register tho. > There was a micro processor version by Fairchild. The story behind it is interesting too. The designer at DEC (Ed de Castro) tried to promote it, Ken Olson didn't like it, so he left to form Data General and created the DG Nova. OK, not a Unix box... -- Dave