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 c3de9588 for ; Thu, 21 Jun 2018 14:10:15 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id E737BA17C3; Fri, 22 Jun 2018 00:10:14 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id BF01D9EDE5; Fri, 22 Jun 2018 00:10:05 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b=lgDF5XTz; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 05EF29EDE5; Fri, 22 Jun 2018 00:10:04 +1000 (AEST) Received: from mail-lf0-f46.google.com (mail-lf0-f46.google.com [209.85.215.46]) by minnie.tuhs.org (Postfix) with ESMTPS id 1E2F89EC27 for ; Fri, 22 Jun 2018 00:10:01 +1000 (AEST) Received: by mail-lf0-f46.google.com with SMTP id e13-v6so4728960lfc.1 for ; Thu, 21 Jun 2018 07:10:01 -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=djCmuB0s1DcYPo6/UeN9QQk52fbd2nitlsizN1AhBNE=; b=lgDF5XTz17UcfTL71Y+0iSlL4i4fqjw1ae2S4YjLfL2zSX5v0anUUw3sgMQ8iqeOdA 4CXILmv1UOWQlk0HktKT6RTA44HqAlu5OyeCr2xgZhJHMJvFkcp8HwA4Gvqhxzg/oU90 epG1j4n6sG+hlekBAoJphWEz4ZFSoY117k67C2Xq4l9GemazOlmAqxooZOEUAMqedO2z 2RbxFYDcrJ0ItJMIsK5J8PPPcUvmegfH34o6tJGV/IToWtdiIYlzI+c1D1vnvWlMwAfi 2uG+PGqo2zg4k5VgFFNiGflvw/+CEIFmhbsjSue2FH/FFJKAGoyZxDBlx6b+U9RD+xJ4 7xTA== 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=djCmuB0s1DcYPo6/UeN9QQk52fbd2nitlsizN1AhBNE=; b=jfqwI98/rlzIeLBeaxdqBONaebg6X5dWrH2rsewyd1DkuMjKwewvcIIgWBRhF6lB8B rkQFm/4lsaLdyHekvdi97htInlT2Xns093HjMH679VmbQbOrOTHdglJTeLXXlr1UVQNq HIWd0xL2sbiMSQGh+rGMI4C1xAo28MnqHiJggo4raSd4aBgJ2K7VVAlcGAX67ni2bGZ/ L4YgguOWevYE4XDq8U0Xyvp+XRb34WjMnmjb34gz+puDE3NS23Mmbg9QZzxSzJpdNYiI V9BIf55ZPk9MVwcZuCAleiml7LsfxYN/8ongnkzaI1Ue1fyD0vYbnqDvC70Ux3Nazpnx HtJQ== X-Gm-Message-State: APt69E0X8ZPByzyAt7Labvm8gFASnxYQIlEpSmft4uO+a9Re93YIPCeF 0NJ7iHFnY8tqQXtOJgZFV6rYf5CYkdYtyfDoILc= X-Google-Smtp-Source: ADUXVKJzIMgebo0m3ePEHdCjskzJ63LqdDAEbR37vfGs75CQw4u70V/xSg3Mw4c0a3x4jvn13kJ2M5vvSpG/ECRHQcI= X-Received: by 2002:a19:48c4:: with SMTP id v187-v6mr2359126lfa.82.1529590199399; Thu, 21 Jun 2018 07:09:59 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:a2e:104c:0:0:0:0:0 with HTTP; Thu, 21 Jun 2018 07:09:58 -0700 (PDT) In-Reply-To: <20180619122359.1525D18C084@mercury.lcs.mit.edu> References: <20180619122359.1525D18C084@mercury.lcs.mit.edu> From: Paul Winalski Date: Thu, 21 Jun 2018 10:09:58 -0400 Message-ID: To: Noel Chiappa Content-Type: text/plain; charset="UTF-8" Subject: Re: [TUHS] 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 6/19/18, Noel Chiappa wrote: > > In other words, there's a reason they were all dropped like hot potatoes in > favour of core - which, looked at from our DRAM-era perspective, seems > quaintly dinosaurian. Individual pieces of hardware you can actually _see_ > with the naked eye, for _each_ bit? But that should give some idea of how > much > worse everything before it was, that it killed them all off so quickly! When we replaced our S/360 model 25 with a S/370 model 125, I remember being shocked when I found out that the semiconductor memory on the 125 was volatile. You mean we're going to have to reload the OS every time we power the machine off? Yuck!! -Paul W.