DOCSLIB.ORG

PROGRAM LIBRARY PDP-Ll CATALOG CATALOG

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

~ PROGRAM LIBRARY PDP-ll CATALOG CATALOG OICiITAl EQUIPMENT COMPUTER USERS SOCIETY AUGUST 1978 DECUS PROGRAM LIBRARY PDP-11 CATALOG Cl DICiITAL EQUIPMENT COMPUTER USERS SOCIETY AUGUST 1978 This is a complete PDP-ll DECUS Library CATALOG. It includes a complete listing of PDP-II and RSTSjE DECUS programs. First Edition February 1974 Updated August 1974 Updated February 1975 Updated July 1975 Updated October 1975 Updated July 1976 Combined and Reprinted September 1976 Combined, ltpdated, and revised September 1977 Updated and revised August 1978 Copyright @ 1978, Digital Equipment Corporation Maynard, Massachusetts The DECUS Program Library is a clearing house only; it does not sell, generate or test programs. All programs and information are provided "AS IS". DIGITAL EQUIP­ MENT COMPUTER USERS SOCIETY, DIGITAL EQUIPMENT CORPORATION AND THE CONTRIBUTOR DISCLAIM ALL WARRANTIES ON THE PRO­ GRAMS AND ANY MEDIA ON WHICH THE PROGRAMS ARE PROVIDED, INCLUDING WITHOUT LIMITATION, ALL IMPLIED WARRANTIES OF MERCHANTABILI1Y AND FITNESS. The descriptions, service charges, exchange rates, and availability of software available from the DECUS Library are subject to change without notice. The following are trademarks of Digital Equipment Corporation: COMPUTER LABS DECtape INDAC RSTS COMTEX DECUS LAB-8 RSX DDT DIBOl MASSBUS TYPESET-8 DEC DIGITAL OMNIBUS TYPESET-11 DECCOMM EDUSYSTEM 0S-8 UNIBUS DECsystem-10 FLIP CHIP PDP DECSYSTEM-20 FOCAL PHA Contents Section 1 General Information 1.1 How to Use this Catalog ................................................................. v 1.1.1 General Catalog Information ................................................. v 1.2 DECUS Contacts .......................................................................... v 1.2.1 United States and Canada .................................................... v 1.2.2 Outside the United States and Canada ..................................... vi 1.3 Payment ..................................................................................... vi 1.4 DECUS Coupons ........................................................................ vii 1.5 Return Policy ............................................................................. vii 1.6 Documentation ........................................................................... vii 1.7 Media ...................................................................................... viii 1.7.1 Media/Price Codes ........................................................... viii 1.8 Program Distribution Methods ....................................................... viii 1.9 Cross System Index ................................ , .................................... viii Section 2 Abstracts 2.1 PDP-II Abstracts ......................................................................... 1 2.2 RSTS-II Abstracts ....................................................................... 53 Section 3 Standards 3.1 DEC Standards Available Through DECUS ........................................ 71 Section 4 Indexes 4.1 Alphabetical Index ....................................................................... 73 4.1 Category Index ........................................................................... 78 4.3 Operating System Index ................................................................. 87 Section 1 General Information Section 1 General Information 1.1 How to Use this Catalog This catalog is divided into four sections: Section I, General Information, provides details about ordering, payment, who to contact within DECUS, policy on returns, and other policy and procedural information. Section 2, Abstracts, is sub-divided into two parts, PDP-II and RSTS-II. Each include program descriptions and respective Media/Price Codes in sequential order by DECUS Order Number. Note: It is essential to designate the applicable Section when ordering from the Catalog, e.g. order "RSTS-II-123" or "PDP-I 1-23." Section 3, Standards, lists and describes all the Digital Equipment Corporation Software Standards and other documentation related to standards such as programming conventions and guidelines available through DECUS. Section 4, Indexes, contains three indexes; the Alphabetical Index lists all programs alphabeti­ cally by title, the Category Index lists all programs by program type (see first page of index for list of categories), and the Operating System Index lists programs by operating system (see first page of index for list of systems.) 1.1.1 General Catalog Information The DECUS Library requests that all inquiries concerning DECUS programs be communicated in writing and forwarded to the DECUS Marlboro office, not to the authors/submitters. DECUS will request assistance from the responsible author/submitter, assuming they are available. Requests for multiple catalogs will be honored, but a nominal service charge will apply. Contact your Chapter office if you require additional catalogs. Editor's Note: The following DECUS programs have been added since the. last version of the PDP-II Catalog: DECUS 11-330 thru 11-362 RSTS 11-108 thru RSTS 11-115 DECUS is pleased to bring to the attention of our RSTS/E users that most RSTS-II programs are now available on RK05 disk. Also, documentation for RSTS-II programs for abstracts I thru 93 are now available on Microfiche (see last page of section 2.2 for ordering information). In addition, the following programs have been updated since the last version: 11-221 RT-11 ODT with TRACE Feature Added. 11-226 RO.MAC-MT ROLLIN File Device Driver 11-229 INDEX-FORTRAN Cross Referencing 11-282 M.I.T. Garbage Collection # I 11-283 M.I.T. Garbage Collection #2 11-284 RSX-Il FOCAL 11-287 M.I.T. Magtape Cornucopia for RSX-IID 11-288 TECO V28 for RT-II 1.2 DEeUS Contacts 1.2.1 United States and Canada To obtain information and to place Library orders, users residing in an area outside the definition of the European or Australian Chapters (see Section 1.2.2), should deal directly with the DEeus Library at the following address: v General Information DECUS Library MR2/E55 One Iron Way Marlboro, MA, 01752 Telephone (6 f7) 481-9511 To obtain information on: PDP-II DECUS Library, contact the PDP-II Library Administrator, (X4178) Standards, Col1tact the Standards Librarian, (X4178) Service charges, order status, shipping information, contact the DECUS Order Desk, (X4135) Payments and billing, contact the DECUS Accounting Coordinator, (X4136) DECUSCOPE, (X4161) U.S. Symposia Information, (X4142) Membership, (x4167) Proceedings, (X4161) In Canada, for DECUS information, contact: DECUS Canada P.O. Box 11500 Ottawa, Ontario K2H 8K8, Canada Telephone (613) 592-5 II I 1.2.2 Outside the U.S. and Canada To place DECUS Library orders, for clarification of policies or procedures on currency exchange information, order status, shipping information, handling charge information and for questions concerning payment and billing outside the U.S. or Canada, contact your local Chapter Office: Australia: DECUS Australia P.O. Box 491 Crows Nest, N. S. W., 2065 Australia Telephone (61 )-(2)-4392566 Europe and Middle East: DECUS Europe 12, avenue des Morgines C.P. 510, 1213 Petit-Lancy 1 Geneva, Switzerland Telephone (022) - 93-33-11 1.3 Payment All DECUS service charges are to defray the cost of media, reproduction, handling, and postage. All orders must be accompanied by check, DECUS coupons, or a purchase order. PLEASE DO NOT SEND CASH THROUGH THE MAIL. Please make purchase orders and checks payable to DECUS. DECUS order processing and accounting functions are completely separate from Digital Equipment Corporation. Do not combine DEeUS orders with Digital Equipment Corporation orders. Please do not request that DIGITAL field personnel place a DECUS order for you. This may delay direct response from DECUS. vi General Information All service charges quoted in this catalog are in U.S. Dollars. A $2.00 invoice charge is added to all orders that are not prepaid. (This is subject to change without notice.) Users outside the United States and Canada should make payment in local currency and forward to the local Chapter office. Overseas users should allow a minimum of eight weeks for delivery. Users in the United States and Canada should make payment in U.S. dollars to DECUS and forward to Marlboro. In the U.S., please allow three to six weeks for delivery. In Canada, allow approximately six weeks for delivery. 1.4 DECUS Coupons Because of the difficulties encountered by many installations in obtaining purchase orders for small amounts, DECUS coupons may be ordered for any amount and used as subsequent payment for DECUS orders. Coupons are available from your DECUS Chapter office. They are supplied in $1, $5, and $10 denominations as DECUS No. 0051. Payment for DECUS coupons must be made in ADVANCE. Purchase orders for coupons must be paid before coupons may be redeemed for DECUS material. DECUS coupons may not be used as payment for DECUS symposia fees. 1.5 Return Policy Tapes may not be returned for credit. It is therefore important that the correct media be specified at the time the order is placed. For further information, see the Program Distribution Methods section of this catalog (Section 1.8). The DECUS Library reproduces user programs and documentation and distributes them essentially at cost. Occasionally, the medium or copying procedure may be faulty and flawed copies may be inadvertantly distributed. DECUS is working to minimize these problems and encourages users to return faulty copies so that the source of the error may be traced.
Recommended publications
  • Pdp11-40.Pdf

    Pdp11-40.Pdf

    processor handbook digital equipment corporation Copyright© 1972, by Digital Equipment Corporation DEC, PDP, UNIBUS are registered trademarks of Digital Equipment Corporation. ii TABLE OF CONTENTS CHAPTER 1 INTRODUCTION 1·1 1.1 GENERAL ............................................. 1·1 1.2 GENERAL CHARACTERISTICS . 1·2 1.2.1 The UNIBUS ..... 1·2 1.2.2 Central Processor 1·3 1.2.3 Memories ........... 1·5 1.2.4 Floating Point ... 1·5 1.2.5 Memory Management .............................. .. 1·5 1.3 PERIPHERALS/OPTIONS ......................................... 1·5 1.3.1 1/0 Devices .......... .................................. 1·6 1.3.2 Storage Devices ...................................... .. 1·6 1.3.3 Bus Options .............................................. 1·6 1.4 SOFTWARE ..... .... ........................................... ............. 1·6 1.4.1 Paper Tape Software .......................................... 1·7 1.4.2 Disk Operating System Software ........................ 1·7 1.4.3 Higher Level Languages ................................... .. 1·7 1.5 NUMBER SYSTEMS ..................................... 1-7 CHAPTER 2 SYSTEM ARCHITECTURE. 2-1 2.1 SYSTEM DEFINITION .............. 2·1 2.2 UNIBUS ......................................... 2-1 2.2.1 Bidirectional Lines ...... 2-1 2.2.2 Master-Slave Relation .. 2-2 2.2.3 Interlocked Communication 2-2 2.3 CENTRAL PROCESSOR .......... 2-2 2.3.1 General Registers ... 2-3 2.3.2 Processor Status Word ....... 2-4 2.3.3 Stack Limit Register 2-5 2.4 EXTENDED INSTRUCTION SET & FLOATING POINT .. 2-5 2.5 CORE MEMORY . .... 2-6 2.6 AUTOMATIC PRIORITY INTERRUPTS .... 2-7 2.6.1 Using the Interrupts . 2-9 2.6.2 Interrupt Procedure 2-9 2.6.3 Interrupt Servicing ............ .. 2-10 2.7 PROCESSOR TRAPS ............ 2-10 2.7.1 Power Failure ..............
  • PDP-8 Simulator Manual

    PDP-8 Simulator Manual

    PDP-8 Simulator Usage 30-Apr-2020 COPYRIGHT NOTICE The following copyright notice applies to the SIMH source, binary, and documentation: Original code published in 1993-2016, written by Robert M Supnik Copyright (c) 1993-2016, Robert M Supnik Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the name of Robert M Supnik shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from Robert M Supnik. 1 Simulator Files.............................................................................................................................3
  • TASK \ OS TASK \ OS TASK \ OS Show/Set EEPROM

    TASK \ OS TASK \ OS TASK \ OS Show/Set EEPROM

    TASK \ OS OS notes administrative GUI managing users TASK \ OS list hardware configuration unique id useful for licensing show/set EEPROM/NVRAM values add device without reboot remove device tape device stdin/ stdout/ stderr X kvm config TASK \ OS read a disk label whole disk in partition label a disk partition a disk TASK \ OS kernel show/set kernel parameters limit physical memory loaded kernel modules load module unload module make disk bootable startup scripts start/ stop/ config services shutdown (& power off if possible) run levels 1 *=normal states for more detail see www.phildev.net/runlevels.html show runlevel 1 time zone info check swap space bind process to CPU TASK \ OS "normal" filesystem volume-based filesystem file system description volume manipulation create filesystem create non-0-length empty file mount CDROM eject CDROM create/mount ISO image ACL management Fibre Channel / SAN TASK \ OS NFS share definitions NFS share command NFS information name resolution order show network interface info change IP start DHCP client ping one packet sniff network route definitions telnetd, ftpd banner set date/time (from net: ntp or other) TASK \ OS auditing encrypted passwords in min password length allow/deny root logins firewall config TASK \ OS show installed software file is in which package add software precompiled binaries of GPLware and freeware C compiler show patch level and/or patches patch tool configure/show runtime linking fortran-2000.com/ ArnaudRecipes/ sharedlib.html link library path tracing utility define user defaults csh global .login default syslog and messages system error reporting tool performance monitoring match process to file or port X pop-up Wikipedia FAQs (see also faqs.org) mailing list mailing list archives man pages www.freebsd.org/ cgi/man.cgi newsgroup(s) and forums groups.google user groups magazines vendor home page vendor docs and patches (see also man pages) vendor phone (US) wikis FreeBSD Derived from 4.4BSD-Lite and 386BSD.
  • Dec Pdp-11, 1970

    Dec Pdp-11, 1970

    resource sharing: timesharing use of high-speed input/outp RSTSll terminal users may have Examples of the value of the Resource another terminal exclusive use of any peripheral 09 a Sharing concept are: one user may use the punched-card file whi8 timesharing system (except the disk, line printer, card reader, tape and BASIC program he ha% which is a shared device). They may use disk files for performing a "batch" off-line card punch. - it as long as needed, and then return it adrmnistrative data processing task; for assignment to another user. The another terminal user may use a ability to enter, store, and retrieve DECtape unit for retrieving or creating a programs and data files using high-speed tape file intended for off-line storage; peripheral devices makes RSTS-11 a true and when thecard reader is free, yet general-purpose problem-solving system. RSTS for business and administrative problem solving One of the most difficult problems facing Potential On-Line Administrative business today is increasing the Applications include: productivity of costly, hard-to-find clerks and secretaries. RSTS-11's power and Order Entry/Accounts Receivable/ flexibility offer the benefits of reduced Sales Analysis costs, increased customer satisfaction, Inventory Control/Accounts Payable and increased job satisfaction for clerical Data Entry with automatic error workers. checking, editing, and verification Inquiry-Response for "instant" access How RSTSll Benefits Administrative to records. Applications Journals, general ledger, and other account records are stored on-line for RSTSll can be dedicated in quick access from high-speed disk administrative application systems. The storage, thus reducing paper handling.
  • A New Architecture for Mini-Computers -- the DEC PDP-11

    A New Architecture for Mini-Computers -- the DEC PDP-11

    Reprinted from - AFIPS - Conference Proceedings, Volume 36 Copyright @ by AFlPS Press Montvale, New Jersey 07645 A new architecture for mini-computers- The DEC PDP-11 by G. BELL,* R. CADY, H. McFARLAND, B. DELAGI, J. O’LAUGHLINandR. NOONAN l?i&l Equipment Corporation Maynard, Massachusetts and W. WULF Carnegit+Mellon University Pittsburgh, Fcriiisylvnnia INTRODUCTION tion is not surprising since the basic architectural concepts for current mini-computers were formed in The mini-computer** has a wide variety of uses: com- the early 1960’s. First, the design was constrained by munications controller; instrument controller; large- cost, resulting in rather simple processor logic and system pre-processor ; real-time data acquisition register configurations. Second, application experience systems . .; desk calculator. Historically, Digital was not available. For example, the early constraints Equipment Corporation’s PDP-8 Family, with 6,000 often created computing designs with what we now installations has been the archetype of these mini- consider weaknesses : computers. In some applications current mini-computers have 1. limited addressing capability, particularly of limitations. These limitations show up when the scope larger core sizes of their initial task is increased (e.g., using a higher 2. few registers, general registers, accumulators, level language, or processing more variables). Increasing index registers, base registers the scope of the task generally requires the use of 3. no hardware stack facilities more comprehensive executives and system control 4. limited priority interrupt structures, and thus programs, hence larger memories and more processing. slow context switching among multiple programs This larger system tends to be at the limit of current (tasks) mini-computer capability, thus the user receives 5.
  • The DEC PDP-8 Vectors

    The DEC PDP-8 Vectors

    The ISP of the PDP-8 Pc is about the most trivial in the book. Chapter 5 — It has only a few data operators, namely, <—,+, (negate), -j, It on A, / 2, X 2, (optional) X, /, and normalize. operates words, The DEC PDP-8 vectors. there are microcoded integers, and boolean However, instructions, which allow compound instructions to be formed in Introduction 1 a single instruction. is the levels dis- The PDP-8 is a single-address, 12-bit-word computer of the second The computer straightforward and illustrates 1. look at it from the down." generation. It is designed for task environments with minimum cussed in Chap. We can easily "top arithmetic computing and small Mp requirements. For example, The C in PMS notation is it can be used to control laboratory devices, such as gas chromoto- 12 graphs or sampling oscilloscopes. Together with special T's, it is C('PDP-8; technology:transistors; b/w; programmed to be a laboratory instrument, such as a pulse height descendants:'PDP-8/S, 'PDP-8/I, 'PDP-8/L; antecedents: 'PDP-5; analyzer or a spectrum analyzer. These applications are typical Mp(core; #0:7; 4096 w; tc:1.5 /is/w); of the laboratory and process control requirements for which the ~ 4 it Pc(Mps(2 w); machine was designed. As another example, can serve as a instruction length:l|2 w message concentrator by controlling telephone lines to which : 1 address/instruction ; occasion- typewriters and Teletypes are attached. The computer operations on data/od:(<— , +, —\, A, —(negate), X 2, stands alone as a small-scale general-purpose computer.
  • The Computer History Simulation Project

    The Computer History Simulation Project

    The Computer History Simulation Project The Computer History Simulation Project The Computer History Simulation Project is a loose Internet-based collective of people interested in restoring historically significant computer hardware and software systems by simulation. The goal of the project is to create highly portable system simulators and to publish them as freeware on the Internet, with freely available copies of significant or representative software. Simulators SIMH is a highly portable, multi-system simulator. ● Download the latest sources for SIMH (V3.5-1 updated 15-Oct-2005 - see change log). ● Download a zip file containing Windows executables for all the SIMH simulators. The VAX and PDP-11 are compiled without Ethernet support. Versions with Ethernet support are available here. If you download the executables, you should download the source archive as well, as it contains the documentation and other supporting files. ● If your host system is Alpha/VMS, and you want Ethernet support, you need to download the VMS Pcap library and execlet here. SIMH implements simulators for: ● Data General Nova, Eclipse ● Digital Equipment Corporation PDP-1, PDP-4, PDP-7, PDP-8, PDP-9, PDP-10, PDP-11, PDP- 15, VAX ● GRI Corporation GRI-909 ● IBM 1401, 1620, 1130, System 3 ● Interdata (Perkin-Elmer) 16b and 32b systems ● Hewlett-Packard 2116, 2100, 21MX ● Honeywell H316/H516 ● MITS Altair 8800, with both 8080 and Z80 ● Royal-Mcbee LGP-30, LGP-21 ● Scientific Data Systems SDS 940 Also available is a collection of tools for manipulating simulator file formats and for cross- assembling code for the PDP-1, PDP-7, PDP-8, and PDP-11.
  • System Generation Notes

    System Generation Notes

    08/8 System Generation Notes Order No. AA-H606A-TA 08/8 System Generation Notes Order No. AA-H606A-TA March 1979 ABSTRACT This document describes the procedures for getting on line with 05/8. SUPERSESSION/UPDATE INFORMATION: This manual supersedes and updates information in the 05/8 Handbook (DEC-S8-0SHBA-A-D) and the 05/8 Handbook Update (DEC·S8·0SHBA·A·DN4). OPERATING SYSTEM AND VERSION: 05/8 V3D. To order additional copies of this document, contact the Software Distribution Center, Digital Equipment Corporation, Maynard, Massachusetts 01754 digital equipment corporation • maynard. massachusetts First Printing, March 1979 The information in this document is subject to change without notice and should not be construed as a commitment by Digital Equipment Corporation. Digital Equipment Corporation assumes no responsibility for any errors that may appear in this document. The software described in this document is furnished under a license and may only be used or copied in accordance with the terms of such license. No responsibility is assumed for the use or reliability of software on equipment that is not supplied by DIGITAL or its affiliated companies. Copyright © 1979 by Digital Equipment Corporation The postage-prepaid READER'S COMMENTS form on the last page of this document requests the user's critical evaluation to assist us in pre­ paring future documentation. The following are trademarks of Digital Equipment Corporation: DIGITAL DECsystem-10 MASSBUS DEC DEC tape OMNIBUS POP DIBOL OS/8 DECUS EDUSYSTEM PHA UNIBUS FLIP CHIP RSTS COMPUTER
  • Timeline of Computer History

    Timeline of Computer History

    Timeline of Computer History By Year By Category Search AI & Robotics (55) Computers (145) Graphics & Games (48) Memory & Storage (61)(61) Networking & The Popular Culture (50) Software & Languages (60) Manchester Mark I Williams- 1947 Kilburn tube EDSAC 1949 Manchester Mark I Williams-Kilburn tube At Manchester University, Freddie Williams and Tom Kilburn develop the Williams-Kilburn tube. The tube, tested in 1947, was the first high-speed, entirely electronic memory. It used a cathode ray tube (similar to an analog TV picture tube) to store bits as dots on the screen’s surface. Each dot lasted a fraction of a second before fading so the information was constantly refreshed. Information was read by a metal pickup plate that would detect a change in electrical charge. Maurice Wilkes with EDSAC Maurice Wilkes and his team at the University of Cambrid construct the Electronic Delay Storage Automatic Calcula (EDSAC). EDSAC, a stored program computer, used me delay line memory. Wilkes had attended the University of Pennsylvania's Moore School of Engineering summer sessions about the ENIAC in 1946 and shortly thereafter Magnetic drum memory began work on the EDSAC. 1950 MIT - Magnetic core memory ERA founders with various magnetic drum memories Eager to enhance America’s codebreaking capabilities, the US Navy contracts with Engineering Research Associates (ERA) for a stored program computer. The result was Atlas, completed in 1950. Atlas used magnetic drum memory, which stored information on the outside of a rotating cylinder coated with ferromagnetic material and circled by read/write heads in Jay Forrester holding early core memory plane fixed positions.
  • TU58 Dectape II User's Guide

    TU58 Dectape II User's Guide

    EK-OTU58-UG-001 TU58 DECtape II User's Guide digital equipment corporation • maynard, massachusetts 1st Editi on, October 1978 The drawings and specifications herein are the property of Digital Equipment Corporation and shall not be reproduced or copied or used in whole or in part as the basis for the manufacture or sale of equipment described herein without written permission. Copyright © 1978 by Digital Equipment Corporation The material in this manual is for informational purposes and is subject to change without notice. Digital Equipment Corporation assumes no re­ sponsibility for any errors which may appear in this man ual. Printed in U.S.A. This document was set on DIGITAL's DECset-SOOO computerized typesetting system. The following are trademarks of Digital Equipment Corporation, Maynard, Massachusetts: DIGITAL DECsystem-lO MASSBUS DEC DECSYSTEM-20 OMNIBUS PDP DIBOL OS/8 DECUS EDUSYSTEM RSTS UNIBUS VAX RSX VMS lAS CONTENTS CHAPTER 1 INTRODUCTION l.1 SCOPE ................................................................................................................ 1-1 l.2 GENERAL DESCRIPTION ............................................................................... 1-1 l.3 BLOCK DIAGRAM ........................................................................................... 1-3 l.3.1 Drive Control ............................................................................................... 1-4 1.3.2 Processor ...................................................................................................... 1-4 1.4
  • DECUS US CHAPTER \ Your Best Connection

    DECUS US CHAPTER \ Your Best Connection

    DECUS U. S. C H A P T E R SI Gs APRIL I MAY JUNE \ Your best connection for: peer-to-peer interaction technical exchange DECEMBER DECUS Printed in the U.S.A. "The Following are Trademarks of Digital Equipment Corporation" ALL-IN-1 PDP-11 TK50 CDA PRO/ Tool Kit ULTRIX CDD Q-BUS VAX DATATRIEVE RALLY VAXC DEC RD31 VAX DATATRIEVE DECnet Rdb/VMS VAXmate DECpage RK05 VAX8700 DECprinter RQDX3 VAX SCAN DECUS RS-422 VAX/ VMS DECUS logo RS-423 VMS DECwindows RSX-11 VT50 (et al.) Digital RT-11 VTlOO FMS SDI WPS LA50 (et al.) WPS-PLUS MicroVAX II Copyright©DECtJS and Digital Equipment Corporation 1990 All Rights Reserved The information in this document is subject to change without notice and should not be construed as a commitment by Digital Equip­ ment Corporation or DECUS. Digital Equipment Corporation and DECUS assume no responsibility for any errors that may appear in this document. It is assumed that all articles [or letters] submitted to the editor[s] of this newsletter are with the authors' permission to publish in any DECUS publication. The articles are the responsibility of the authors and, therefore, DECUS Digital Equipment Corporation, and the editor[s] assume no responsibility or liability for articles or information appearing in the document. The views herein expressed are [necessarily] those of the authors and do not necessarily reflect the views of DECUS or Digital Equipment Corporation. [Replies to any articles or editorials may be sent to the appropriate SIG editor or to the Newsletter chair. Editors' addresses may be found in the specific SIG sections.
  • SECTION 1 INTRODUCTION and DESCRIPTION Dectape Provides the Flexibility, Speed, and Storage Capabilities of Magnetic Tape Wh'ile

    SECTION 1 INTRODUCTION and DESCRIPTION Dectape Provides the Flexibility, Speed, and Storage Capabilities of Magnetic Tape Wh'ile

    SECTION 1 INTRODUCTION AND DESCRIPTION DECtape provides the flexibility, speed, and storage capabilities of magnetic tape wh'ile main­ taining the convenience of paper tape •. Its si.ze· and portability, in addition to the reliability obtained by the tape format and track head arrangemen1, render Hs integration into overall systems on easily accompl ished task. The 550 Control together with the DECtape Transport is used with either ~ PDP-l, -4, or -7 to provide a fast, c<?nvenien~: input-output device. This manual will emphasize the operation of the 550 control since a complete de~cription of the transport is available in the 555 DECtape Dual Transport manual (H-555). DECTAPE CONTROL TYPE 550 The DECtape Control Unit 550 is a program break control. That is, it allows the transfer of information word by word between the computer and the DECtape Transport. Si~ce the control does not deal with blocks of information from the tape, words can be individually read and written within certain general limits. Since t'he computer is required to attend to the needs of the control on a word by word basis, however, more of its time is spent in handl ing the needs of the control than wou Id be. the case if the clontrol were of the block transfer type. The DECtape Control Unit 550 contains electronic circuitry necessary for performing the log­ ical and timing functions essential to the operation of the system; the transport unit contains the tape handl ing elements, the drive mechanism, and relays for switching the tape heads onto a master bus system.