From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) 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=3.4.2 Received: from minnie.tuhs.org (minnie.tuhs.org [45.79.103.53]) by inbox.vuxu.org (OpenSMTPD) with ESMTP id 39a954cf for ; Sat, 9 Mar 2019 22:36:59 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id E40E393D2E; Sun, 10 Mar 2019 08:36:57 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id D6F2593D2D; Sun, 10 Mar 2019 08:36:23 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id A349493D2D; Sun, 10 Mar 2019 08:36:20 +1000 (AEST) X-Greylist: delayed 426 seconds by postgrey-1.36 at minnie.tuhs.org; Sun, 10 Mar 2019 08:36:19 AEST Received: from ipo5.cc.utah.edu (ipo5.cc.utah.edu [155.97.144.30]) by minnie.tuhs.org (Postfix) with ESMTPS id 0027B93D28 for ; Sun, 10 Mar 2019 08:36:19 +1000 (AEST) X-IronPort-AV: E=Sophos;i="5.58,461,1544511600"; d="scan'208";a="346451953" Received: from mail.math.utah.edu ([155.101.98.135]) by ipo5smtp.cc.utah.edu with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 09 Mar 2019 15:29:13 -0700 Received: from gamma.math.utah.edu (gamma.math.utah.edu [155.101.96.20]) by mail.math.utah.edu (8.14.8/8.14.8) with ESMTP id x29MTBRC003934; Sat, 9 Mar 2019 15:29:11 -0700 (MST) Received: from gamma.math.utah.edu (localhost [127.0.0.1]) by gamma.math.utah.edu (8.15.1/8.15.1) with ESMTP id x29MTBr0190767; Sat, 9 Mar 2019 15:29:11 -0700 Received: (from beebe@localhost) by gamma.math.utah.edu (8.15.1/8.15.1/Submit) id x29MTBkI190765; Sat, 9 Mar 2019 15:29:11 -0700 Date: Sat, 9 Mar 2019 15:29:11 -0700 From: "Nelson H. F. Beebe" To: The Eunuchs Hysterical Society X-US-Mail: "Department of Mathematics, 110 LCB, University of Utah, 155 S 1400 E RM 233, Salt Lake City, UT 84112-0090, USA" X-Telephone: +1 801 581 5254 X-FAX: +1 801 581 4148 X-URL: http://www.math.utah.edu/~beebe Message-ID: X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.3.8 (mail.math.utah.edu [155.101.98.135]); Sat, 09 Mar 2019 15:29:11 -0700 (MST) Subject: Re: [TUHS] Failing Memory of an Algol Based System from years ago 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" The posting of the link http://bitsavers.org/pdf/regnecentralen/RC_4000_Reference_Manual_Jun69.pdf brought back old memories. When I moved to Aarhus University in Denmark in December 1973, I found that the Department of Chemistry where I worked had a Regnecentralen RC-4000 minicomputer with paper tape input that was used to manage the department's accounting. It had a dedicated operator who kept in running nicely until at least after I left in 1977. It had too little physical memory to be considered practical for the quantum chemistry work that I was then engaged in, and may not even have had a Fortran compiler; instead, we used the campus CDC 6400 for our research. In memory of the RC-4000, and Per Brinch Hansen's (13 Nov 1938--31-Jul-2007) many contributions to the literature of computer science, programming language design, and parallel computing, I prepared an enhancement of its manual, available here: http://www.math.utah.edu/~beebe/RC-4000/ The Web page that comes up gives a directory of the available files, and documents the steps needed to produce them. The result is a searchable document, with a single page image per PDF page, rather than the mixed bitmap scan of 1-up and 2-up pages in the original PDF file. Despite my 40+ year engagement in the TeX community, I only recently learned via the texhax mailing of some PDFTeX internals that allow one to construct a file that can retypeset n-up files into 1-up format. I therefore make this posting in the hope that someone else might be encouraged to tackle similar document improvements in the bitsavers archives. Although it takes a bit of experimentation, with the exception of the OCR conversion, the entire operation can be done with free software on pretty much any modern computing platform, thanks to the portability of the needed software. ------------------------------------------------------------------------------- - Nelson H. F. Beebe Tel: +1 801 581 5254 - - University of Utah FAX: +1 801 581 4148 - - Department of Mathematics, 110 LCB Internet e-mail: beebe@math.utah.edu - - 155 S 1400 E RM 233 beebe@acm.org beebe@computer.org - - Salt Lake City, UT 84112-0090, USA URL: http://www.math.utah.edu/~beebe/ - -------------------------------------------------------------------------------