From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: tuhs-bounces@minnie.tuhs.org X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.6 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.1 Received: from minnie.tuhs.org (minnie.tuhs.org [45.79.103.53]) by inbox.vuxu.org (OpenSMTPD) with ESMTP id 028807b8 for ; Sun, 24 Jun 2018 13:04:14 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id 66C28A1831; Sun, 24 Jun 2018 23:04:13 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 635F59EE0C; Sun, 24 Jun 2018 23:03:46 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b=c+yJAEdB; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id BEDAA9EE0C; Sun, 24 Jun 2018 23:03:42 +1000 (AEST) Received: from mail-lf0-f53.google.com (mail-lf0-f53.google.com [209.85.215.53]) by minnie.tuhs.org (Postfix) with ESMTPS id D880E9EDE9 for ; Sun, 24 Jun 2018 23:03:41 +1000 (AEST) Received: by mail-lf0-f53.google.com with SMTP id q11-v6so12399911lfc.7 for ; Sun, 24 Jun 2018 06:03:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=+NAC/AT0RPU1+CmdITx7QNO9a0Yx7deVt12QnUZLkaw=; b=c+yJAEdB1FElOw2+B52hKkrcHysM8+jrCaJA1eTe5kfPfZQ3FLJPrmGMttnEhySO/M Ati1wSV7cFP+lcSNarYKZQKDGIt1CCAyuXM6gnuR5v2HVHtpcz7En5xpBZ3cB9mg+H+B 6/MZBx+oZ51eXrHDyog30g5Kphy4vx/exzfhRTQW5GPVt15ePvBtWKDupVuvevEUrwN5 KX8+aIc/+3MmYPLo9DBuJyDLZbUpN+6g+kKdgn1woJtryA+D9K44slCT7HQAwoo+tCp6 YNEvpY0ZrYr9hFoMn52hIsj1ZR+M/B2L3aTF4Bc2/1wIEGCpOEl8wYVLoUxKDMCrULQS Gb+A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=+NAC/AT0RPU1+CmdITx7QNO9a0Yx7deVt12QnUZLkaw=; b=F98MSssQpgy42pIXuq1JYrGlB3WxQlVWMkK4AgVYyK+0m7f9ihJbZ1nXNZi7oHidiv IDDP7oz02SG1gVzmP+LnGzOBrQR5lykFvw/x9FG7mbj2Mji7OqBBDfrUR3FhO9MdnNJK FPVvBqqFiL96f8VkFHEwFdexbgBte8WK1kb2cr2HE3qwUp3/2bhwRo2k7/b2Rk2pftEE fF7S3hk4I81m0Q8han9Dv+AvTGZa703Thg+beZ2kV5BVH3BuhBOzaGdbkY8BlR8QG9mL U4/jk+FVUF7SfWV4FwZhGWzDBpouch0meuFr+wYmeKt7WOmqg8kS74M3QY9inYYE4LuJ kBMQ== X-Gm-Message-State: APt69E27fz/3l4yGeD8/OiRhjlcn4pvVha2emdJYQ0jSIibqm6fedzo0 ohxUd7RVgowfn2yCEbtSGXx/DnKdNkfO4YAGTFw= X-Google-Smtp-Source: ADUXVKKViWYjRTn7Va/+u6xYSuM1SreT4iXufWQNVlFXFac8RAAjOJGYqFE4oRvgs5izVcqAmB7ARM7TdYwvA5nLkNk= X-Received: by 2002:a19:a283:: with SMTP id l125-v6mr3855110lfe.100.1529845419977; Sun, 24 Jun 2018 06:03:39 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:a2e:104c:0:0:0:0:0 with HTTP; Sun, 24 Jun 2018 06:03:39 -0700 (PDT) In-Reply-To: <20180624031454.4F9484422F@lignose.oclsc.org> References: <20180624031454.4F9484422F@lignose.oclsc.org> From: Paul Winalski Date: Sun, 24 Jun 2018 09:03:39 -0400 Message-ID: To: Norman Wilson Content-Type: text/plain; charset="UTF-8" Subject: Re: [TUHS] Old mainframe I/O speed (was: core) X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: tuhs@tuhs.org Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" On 6/23/18, Norman Wilson wrote: > Ron Minnich: > > Jon Hall used to love telling the story of the VAX backplane with the > glue > in the board slots, which clever customers managed to damage and have > repaired with a non-glued-up backplane. That was the VAXstation-11/RC. Marketing wanted a VAXstation with fewer backplane slots that it could sell at a cheaper price. Rather than manufacture a different board, they just filled the extra backplane slots with glue to render them unusable. "RC" officially stood for "restricted configuration", but we in Engineering called it "resin caulked". -Paul W.