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=-1.0 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 f028c121 for ; Thu, 30 Aug 2018 00:13:19 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id 6A85FA1F09; Thu, 30 Aug 2018 10:13:18 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id CCBE5A1A20; Thu, 30 Aug 2018 10:13:09 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id BC505A1A20; Thu, 30 Aug 2018 10:13:08 +1000 (AEST) Received: from viclamta26p.bpe.bigpond.com (viclamta26p.bpe.bigpond.com [203.38.21.90]) by minnie.tuhs.org (Postfix) with ESMTPS id 526C4A1A1C for ; Thu, 30 Aug 2018 10:13:07 +1000 (AEST) Received: from smtp.telstra.com ([10.10.26.4]) by viclafep26p-svc.bpe.nexus.telstra.com.au with ESMTP id <20180830001305.GXGK5656.viclafep26p-svc.bpe.nexus.telstra.com.au@smtp.telstra.com> for ; Thu, 30 Aug 2018 10:13:05 +1000 X-RG-Spam: Unknown X-RazorGate-Vade-Verdict: clean 0 X-RazorGate-Vade-Classification: clean X-RazorGate-Vade: gggruggvucftvghtrhhoucdtuddrgedtjedrgeejgdeffecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfupfevtfgpvffgnffuvfftteenuceurghilhhouhhtmecufedttdenucenucfjughrpeffhffvufgjkfhffgggtgesmhdttdertderjeenucfhrhhomhepffgrvhgvucfjohhrshhfrghllhcuoegurghvvgeshhhorhhsfhgrlhhlrdhorhhgqeenucfkphepuddutddrudeguddrudelfedrvdeffeenucfrrghrrghmpehhvghloheprghnvghurhhinhdrhhhorhhsfhgrlhhlrdhorhhgpdhinhgvthepuddutddrudeguddrudelfedrvdeffedpmhgrihhlfhhrohhmpeeouggrvhgvsehhohhrshhfrghllhdrohhrghequceuqfffjgepkeeukffvoffkoffgpdhrtghpthhtohepoehtuhhhshesthhuhhhsrdhorhhgqeenucevlhhushhtvghrufhiiigvpedt X-RG-VS-CLASS: clean Received: from aneurin.horsfall.org (110.141.193.233) by smtp.telstra.com (9.0.019.26-1) id 5B0418AC0E51CBA5 for tuhs@tuhs.org; Thu, 30 Aug 2018 10:13:04 +1000 Received: from aneurin.horsfall.org (localhost [127.0.0.1]) by aneurin.horsfall.org (8.15.2/8.15.2) with ESMTP id w7U0D4Cw008338 for ; Thu, 30 Aug 2018 10:13:04 +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 w7U0D495008335 for ; Thu, 30 Aug 2018 10:13:04 +1000 (EST) (envelope-from dave@horsfall.org) X-Authentication-Warning: aneurin.horsfall.org: dave owned process doing -bs Date: Thu, 30 Aug 2018 10:13:03 +1000 (EST) From: Dave Horsfall To: The Eunuchs Hysterical Society In-Reply-To: Message-ID: References: <1F62F4D0-7AD1-43C2-A9B7-CF9DF239C3D9@berlan.de> <02ee9a61-2920-40e0-bfa4-feb8b3d38c73@gmail.com> <30f470e7-12cb-00ac-6461-35ce8dfb425d@kilonet.net> <0cfe9e5b-6a34-cea0-3639-4bdfea039cab@kilonet.net> 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: multipart/mixed; boundary="1483753691-564586449-1535587984=:41601" Subject: Re: [TUHS] =?utf-8?b?UmV0cm9OZXTigKY=?= 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" This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --1483753691-564586449-1535587984=:41601 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8BIT On Wed, 29 Aug 2018, Clem Cole wrote: > But yeah, when a DZ11 was blazing away at 19200 baud (I hacked > the TOPS-10 6.03A we had at LIRICS to support it), it made the > system crawl. > > No doubt.   CMU and MIT had front ends that put the serial lines on > dedicated PDP-11s in front of the 10's - so the Tops (or ITS) only saw > canonicalized I/O and it made a huge difference for those systems.  By > the time Vaxen, I don't think DEC had yet realized what a problem the DZ > was.  Did the Aussie DZ-11 drivers (there were two versions) not make it out of the country? They are on the UNSW tapes, and I seem to recall a thread about this... I don't know how fast we drove them, but I doubt whether it was 19200; probably 9600 for the lucky few and 2400 for the plebs. -- Dave --1483753691-564586449-1535587984=:41601--