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=MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 32446 invoked from network); 15 Aug 2020 02:09:21 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 15 Aug 2020 02:09:21 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 2350B9B682; Sat, 15 Aug 2020 12:09:20 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 0FEFA9B5EC; Sat, 15 Aug 2020 12:08:30 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id D4EBF9B5EC; Sat, 15 Aug 2020 12:08:27 +1000 (AEST) Received: from viclamta18p.bpe.bigpond.com (viclamta18p.bpe.bigpond.com [203.38.21.82]) by minnie.tuhs.org (Postfix) with ESMTPS id CD3BE9B5D7 for ; Sat, 15 Aug 2020 12:08:26 +1000 (AEST) Received: from smtp.telstra.com ([10.10.26.4]) by viclafep18p-svc.bpe.nexus.telstra.com.au with ESMTP id <20200815020824.KIIB19041.viclafep18p-svc.bpe.nexus.telstra.com.au@smtp.telstra.com> for ; Sat, 15 Aug 2020 12:08:24 +1000 X-RG-Spam: Unknown X-RazorGate-Vade: gggruggvucftvghtrhhoucdtuddrgeduiedrleekgdehiecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfupfevtfgpvffgnffuvffttedpqfgfvfenuceurghilhhouhhtmecugedttdenucenucfjughrpeffhffvufgjkfhffgggtgesthdttddttdervdenucfhrhhomhepffgrvhgvucfjohhrshhfrghllhcuoegurghvvgeshhhorhhsfhgrlhhlrdhorhhgqeenucggtffrrghtthgvrhhnpeekieetjeeuuefhfeeguedvudeifeevudfgvedtffekhfffjeekhfdutdetheethfenucfkphepuddutddrudeguddrudelfedrvdeffeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhephhgvlhhopegrnhgvuhhrihhnrdhhohhrshhfrghllhdrohhrghdpihhnvghtpeduuddtrddugedurdduleefrddvfeefpdhmrghilhhfrhhomhepoegurghvvgeshhhorhhsfhgrlhhlrdhorhhgqedprhgtphhtthhopeeothhuhhhssehtuhhhshdrohhrgheq X-RazorGate-Vade-Verdict: clean 0 X-RazorGate-Vade-Classification: clean X-RG-VS-CLASS: clean Received: from aneurin.horsfall.org (110.141.193.233) by smtp.telstra.com (5.8.420) id 5E8A564B16D9B978 for tuhs@tuhs.org; Sat, 15 Aug 2020 12:08:24 +1000 Received: from aneurin.horsfall.org (localhost [127.0.0.1]) by aneurin.horsfall.org (8.15.2/8.15.2) with ESMTP id 07F28Naa014162 for ; Sat, 15 Aug 2020 12:08:23 +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 07F28NWS014159 for ; Sat, 15 Aug 2020 12:08:23 +1000 (EST) (envelope-from dave@horsfall.org) X-Authentication-Warning: aneurin.horsfall.org: dave owned process doing -bs Date: Sat, 15 Aug 2020 12:08:22 +1000 (EST) From: Dave Horsfall To: The Eunuchs Hysterical Society In-Reply-To: <20200815012003.GQ32735@mcvoy.com> Message-ID: References: <202008141739.07EHdn2U1381389@darkstar.fourwinds.com> <4F69D0BB-C6C8-443C-A5A2-0F0C1E5578B0@cfcl.com> <20200815012003.GQ32735@mcvoy.com> 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; format=flowed Subject: Re: [TUHS] A/UX [was Linux is on-topic] 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: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" On Fri, 14 Aug 2020, Larry McVoy wrote: > I'm sure everyone here knows this, but the Cray 1 (I think, the one that > had what looked like a circular bench seat around the bottom) was > designed like that because the clock was at the center and the clock > signal went to all the boards and was right because all the clock lines > to the boards were the same length. Yep, timing was everything in those days (and I'm still amazed at the people who believe that electricity moves at the speed of light). Wasn't it Grace Hopper who used to demonstrate a nanosecond by holding up a foot of wire? -- Dave