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=-0.8 required=5.0 tests=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 d773870a for ; Sun, 24 Jun 2018 03:16:44 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id 2B5B9A1862; Sun, 24 Jun 2018 13:16:43 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id C8E769EE0C; Sun, 24 Jun 2018 13:16:30 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id D718A9EE0C; Sun, 24 Jun 2018 13:16:28 +1000 (AEST) Received: from oclsc.com (oclsc.com [206.248.137.164]) by minnie.tuhs.org (Postfix) with SMTP id A33BC9EDE9 for ; Sun, 24 Jun 2018 13:16:25 +1000 (AEST) Received: by lignose.oclsc.org (Postfix, from userid 1000) id 4F9484422F; Sat, 23 Jun 2018 23:14:54 -0400 (EDT) To: tuhs@tuhs.org Message-Id: <20180624031454.4F9484422F@lignose.oclsc.org> Date: Sat, 23 Jun 2018 23:14:54 -0400 (EDT) From: norman@oclsc.org (Norman Wilson) 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: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" 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. ===== It wasn't exactly a VAX backplane; it was a QBus backplane, though I don't know whether this marketing-induced castration was performed on anywhere but on the backplaces of certain MicroVAX models. I think one of my saved-from-the-dumpster BA23s had one of those backplanes. I just declared it to be a source of spare parts, other than backplanes. Norman Wilson Toronto ON