News on Educational Use of Computers Among Michigan Colleges and Universities
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Communications Products
KMW ShortForm SYSTEMS CORPORATION Catalbg Communications Products GENERAL KMW products fali into three catagories ; commu interface products, or for more detailed informa nications, graphics and channel interfaces. This tion on any of the products described in th is doc document attempts to provide general informa ument, please contact your local representative tion on the communications product line. For in· or the KMW home office. formation on KMW graphic products and channel COMMUNICATIONS KMW's Series II Protocol Convertors are a sec ond generation offering of sophisticated micro processor-based protocol conversion equipment. Oesigned to allow the user to attach a wide vari ety of both serial and parallel devices to an IBM mainframe via synchronous communications, the Sedes II is the most cost-effective, versatile de vice of its type on the market today. SERIES II 3270 FS KMW's 3270 FS is designed to allow connection o Support of one to eight CRTs or printers of low cost async CRTs and printers to an IBM o Supports PF 1-24 PA·1, 2, 3, ENTER and mainframe. CLEAR functions Key features include: o Support for most common async CRTs includ 03271 BiSync or 3274 SNA/SOLC emulation ing Lear Seigler, Microterm, Televideo, OEC o Switch selectable control unit and device VT-52 and VT-100, IBM 3101 , Tektronix, etc. addresses o Seroll mode operation for printer/keyboard o Switch selectable baud rates up to 19,200 support Optional Direct Communications .--__----, j---------.-----i AS~ ASC II CRT I IBM 3704 li . ! KMW ~ L I A ASC II or ~ , sJnc Sy~c ~ Series Il l I MODEM I 1 MODEM I EQUIV. -
Ascii, Baudot, and the Radio Amateur
ASCII, BAUDOT AND THE RADIO AMATEUR George W. Henry, Jr. K9GWT Copyright © 1980by Hal Communications Corp., Urbana, Illinois HAL COMMUNICATIONS CORP. BOX365 ASCII, BAUDOT, AND THE RADIO AMATEUR The 1970's have brought a revolution to amateur radio RTTY equipment separate wire to and from the terminal device. Such codes are found in com and techniques, the latest being the addition of the ASCII computer code. mon use with computer and line printer devices. Radio amateurs in the Effective March 17, 1980, radio amateurs in the United States have been United States are currently authorized to use either the Baudot or ASCII authorized by the FCC to use the American Standard Code for Information serial asynchronous TTY codes. Interchange(ASCII) as well as the older "Baudot" code for RTTY com munications. This paper discusses the differences between the two codes, The Baudot TTY Code provides some definitions for RTTY terms, and examines the various inter facing standards used with ASCII and Baudot terminals. One of the first data codes used with mechanical printing machines uses a total of five data pulses to represent the alphabet, numerals, and symbols. Constructio11 of RTTY Codes This code is commonly called the Baudot or Murray telegraph code after the work done by these two pioneers. Although commonly called the Baudot Mark Ull s,.ce: code in the United States, a similar code is usually called the Murray code in other parts of the world and is formally defined as the International Newcomers to amateur radio RTTY soon discover a whole new set of terms, Telegraphic Alphabet No. -
Teletypewriter Communication Codes
Teletypewriter Communication Codes Gil Smith [email protected] 2001 (Document Notes) Abstract Preliminary -- 5/01 gil smith Corrections or comments to [email protected] This information is pulled from a variety of sources, such as various emails of the greenkeys group. For more discussion of teletypewriter code development, see: http://www.nadcomm.com/fiveunit/fiveunits.htm http://fido.wps.com/texts/codes/index.html http://www.science.uva.nl/faculteit/museum/DWcodes.html FIVE-UNIT CODES: USTTY and ITA2 (aka BAUDOT) There were a few variations in character codes for five-level teletypewriter machines. The two most-common character codes were ITA2 and USTTY (a variation of ITA2). The USTTY and ITA2 5-level teletypewriter codes are commonly referred to as "Baudot" codes. While this is technically incorrect, these popular 5-level codes evolved from the work of Jean Maurice Emile Baudot of France - - it seems fitting to accept the defacto reference to "Baudot" as implying USTTY or ITA2 codes, since they were the 5-level codes that saw practical use in teletypewriter systems. However, the true Baudot code dates to around 1874, when Baudot designed the "Baudot Multiplex System," a printing telegraph. The system used a 5-level code generated by a device with five keys, operated with two left-hand fingers, and three right-hand fingers -- this required great skill on the part of the operator who entered the code directly. However, it was still a major improvement in communications -- prior to Baudot's design, communication was carried out using Morse code with a telegraph key. The 5-level "Baudot" code was actually designed by Johann Gauss and Wilhelm Weber. -
AN OS/360 MVT TIME-SHARING SUBSYSTEM for DISPLAYS and TELETYPE Lij Gary D
,DOCUMENT RESUME ED 082 488 BM 011 457 , _ AUTHOR Schultz, Gary D. 1 TITLE The CHAT System:1)ln OS/360 MVT Time-Sharing Subsystem for Displays and Teletype. Technical Progress Report. INSTITUTION North Carolina Univ., Chapel Hill. Dept. of Computer Science. SPONS AGENCY National Science Foundation, Washington, D.C. REPORT NO UNC-TPR-CAI-6 PUB DATE May 73 NOTE 225p.; Thesis submitted to the Department of Computer Science, University of North Carolina EDRS PRICE MF-$0.65 HC-:-$9.87 DESCRIPTORS Computer Programs; Input Output Devices; *Interaction; *Man Machine Systems;, Masters Theses; Program Descriptions; *Systems DeVelopment; Technical Reports; *Time Sharidg IDENTIFIERS *Chapel Hill Alphanumeric Terminal; CHAT; CRT Display Stations;. OS 360; PI. I; Teletype ABSTRACT The design and operation of a time-sharing monitor are described. It runs under OS/360 MVT that supports multiple application program interaction with operators of CRT (cathode ray tube) display stations and of .a teletype. Key. design features discussed include:1) an interface. allowing application programs to be coded in either PL/I or assembler language; 2) use of the teletype for:subsystem control and diagnostic purposes; and 3)a novel interregional conduit allowing an application program running under the Chapel Hill Alphanumeric Terminal (CHAT)_: monitor to interact--like a terminal operator--with a conversational language processor in another region of the OS/360 installation. (Author) FILMED FROM BEST A7AILABLE COPY University of North Carolina atChapel Hill Department of Computer Science CO -4. CNJ CO THE CHAT SYSTEM: AN OS/360 MVT TIME-SHARING SUBSYSTEM FOR DISPLAYS AND TELETYPE LiJ Gary D. -
Tektronix PLOT 10 GKS
THE IDD VOL. 7 NO.3 APPLICATIONS NEWSLETTER FALL 1983 Tekniques COMMITTED TO EXCELLENCE Tekniques In This Issue Special Feature ! . ~ , . Computer Graphics Standards: Where They Are. .. .. .. 8 Where Standards Fit, What They Are ................... 10 4050 Series Underwater Inspection of Waterfront Structures. •. 2 Graphics Enhancement ROM Pack .. S New ROM Packs, Interfaces and Peripherals ................... 7 Ron. Brackett (Ie/t) and Ron Erich, performing ultrasound materiols analysis at the Port Hueneme (Calif) PLOT 10 instrumentation/acility adjacent to NCEL's test dive tank. Erich is performing real time data analysis Tektronix PLOT 10 GKS ......•.... 12 with the Tektronix 4052 desktop computing system, while Brackett studies ultrasound in/ormation with Undergraduate Mathematics an ultrasonic flaw detector. Curriculum ....................... 14 4110 Series Chrysler CAD/CAM .............. IS Underwater Inspection of Water 41 lOA Local Programmability at Chrysler ...•................... 19 front Structures Aided by 4052 "8" Series Enhancement Kits ....... 20 Autoconvergence .................. 21 Desktop Computing System 4100 Jeri" SAS~ with Tektronix ORT HUENEME, Calif., - In sup and repair costs forced a move from our tra Low Cost Terminals ............... 2S port of its massive fleet of ships. air ditional visual inspection techniques," says 4105 Version 2 Firmware ........... 27 P craft and miUtary vehicles. the U.S. Ron Brackett, managing engineer on the ( Navy maintains an extensive Naval Shore underwater inspection program at NCEL. Tektronix 4970 Cluster Controller. .. 36 Establishment, including a major network of ) Tektronix 4663 Plotter ............. 44 waterfront facilities. More than two-thirds of "While a trained diver can determine evi ) Warranty Plu,s .................... 28 these stationary facilities - piers, wharfs, dence of external deterioration in steel plate, Tektronix 51,4 • Floppy Disks . -
BCIS 1305 Business Computer Applications
BCIS 1305 Business Computer Applications BCIS 1305 Business Computer Applications San Jacinto College This course was developed from generally available open educational resources (OER) in use at multiple institutions, drawing mostly from a primary work curated by the Extended Learning Institute (ELI) at Northern Virginia Community College (NOVA), but also including additional open works from various sources as noted in attributions on each page of materials. Cover Image: “Keyboard” by John Ward from https://flic.kr/p/tFuRZ licensed under a Creative Commons Attribution License. BCIS 1305 Business Computer Applications by Extended Learning Institute (ELI) at NOVA is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted. CONTENTS Module 1: Introduction to Computers ..........................................................................................1 • Reading: File systems ....................................................................................................................................... 1 • Reading: Basic Computer Skills ........................................................................................................................ 1 • Reading: Computer Concepts ........................................................................................................................... 1 • Tutorials: Computer Basics................................................................................................................................ 1 Module 2: Computer -
Computer Time-Sharing (T-S) "An Engineering Tool" for the Engineering Applications of the Small Company
Scholars' Mine Masters Theses Student Theses and Dissertations 1970 Computer time-sharing (T-S) "an engineering tool" for the engineering applications of the small company James Binford Summers Follow this and additional works at: https://scholarsmine.mst.edu/masters_theses Part of the Civil Engineering Commons Department: Recommended Citation Summers, James Binford, "Computer time-sharing (T-S) "an engineering tool" for the engineering applications of the small company" (1970). Masters Theses. 5477. https://scholarsmine.mst.edu/masters_theses/5477 This thesis is brought to you by Scholars' Mine, a service of the Missouri S&T Library and Learning Resources. This work is protected by U. S. Copyright Law. Unauthorized use including reproduction for redistribution requires the permission of the copyright holder. For more information, please contact [email protected]. COMPUTER TIME-SHARING (T-S) "AN ENGINEERING TOOL" FOR THE ENGINEERING APPLICATIONS OF THE SMALL COMPANY BY JAMES BINFORD SUMMERS, 1938- A THESIS submitted to the faculty of the UNIVERSITY OF MISSOURI - ROLLA in partial fulfillment of the requirements for the Degree of MASTER OF SCIENCE IN CIVIL ENGINEERING Rolla., Missouri 1970 T2478 c.l 62 pages Approved by ~Jt£.~ ~.(advisor)~~ 187982 ~tiM/ ii ABSTRACT The objectives of this investigation were to illustrate the capabilities of the time-sharing (T-S) industry, identify the means by which the small sized company, with a need to solve engineering problems, can best be served through T-S, and to present T-S to these potential users. Investigation was made of distinctive T-S services to formulate a com posite of the T-S industry. Examples of three distinctive T-S services were used within this composite to exemplify the variations of services within the industry. -
All About Alphanumeric Display Terminals
C2S-01 0-1 01 Terminals All About Alphanumeric Display Terminals The video display terminal (VDT, or CRT, as it is com monly referred to) is the principal interface between people The traditional alphanumeric display terminal, and computers. As the computer (particularly the micro threatened by the onslaught of microcomputers computer) becomes pervasive in today's business world, with terminal emulation capabilities, remains more and more people are being exposed to this popular alive and well. In fact. market studies consistently business tool. Originally invented as a "glass teletype," an show a steady, stable growth for this market in the alternative to using a teleprinter terminal as a computer next few years. This report focuses on non-user operator console, the display terminal has evolved to the programmable alphanumeric display terminals point where it is a primary component in the vast majority designed for general-purpose business applica of modern computer applications, including data entry, tions. It includes a brief historical summary of the inquiry/response, program development, business and sci market; current market trends; developments in entific graphics, word processing/text editing, CAD/CAM, ergonomics; and a look at the industry's major and many others. For the purpose of this report, we will segments. Also included are comparison columns focus on alphanumeric display terminals designed for gen detailing the specifications of 352 display termi eral-purpose business applications. nal models offered by 87 vendors. The steady introduction of improvements in CRT design As with all segments of the hardware industry, technologi and functional capability, such as editing, highlighting, cal improvements have led to lower prices for the user. -
Teleprinters for the Radio Amateur
TELEPRINTERS FOR THE RADIO AMATEUR http://www.rtty.com/England/creed1.html WWW.RTTY.COM History Hall TELEPRINTERS FOR THE RADIO AMATEUR by Alan G Hobbs, G8GOJ [email protected] There are many different types of mechanical teleprinter which become available on the surplus market from time to time, but we will only concern ourselves with the ones which are most liable to be encountered. The teleprinters that we will be considering come from three manufacturers: Creed & Company of England, the Teletype Corporation of the U.S.A., and Siemens of Germany. There are three fundamental requirements which must be considered before purchasing a machine: 1. The electrical signaling characteristics. 2. The code that the machine uses. 3. The signaling speed at which the machine operates. Signaling Characteristics Machines manufactured in the U.K. normally use what is known as Double Current or Polar signaling, in which the two signaling states, Mark and Space, are represented by current flowing in opposite directions, often +/- 20mA, with Mark being represented by a negative current flow. Whereas machines manufactured in the U.S.A. and Germany normally use what is known as Single Current or Neutral signaling, in which the two signaling states, Mark and Space, are represented by the presence or absence of current, often 60mA, the actual polarity being unimportant. Note that we are referring to current flow in each case, and not to voltages. The receiving section of a teleprinter usually consists of a form of electro-mechanical relay, often called the electro-magnet, with a fairly high inductance, perhaps up to 4 Henrys, and a low DC resistance, perhaps only 200 Ohms, which responds to the incoming signaling impulses. -
Teletype 4400 Series Data Terminals
C25-830-101 Display Terminals Teletype 4400 Series Data Terminals Teletype Corporation's 4400 Series display terminals feature ergonomic design and ASCII compatibility. MODELS: 4420. 4424, and 4430. DISPLAY: A 13-inch display screen mount ed on a tiltable display stand is standard. KEYBOARD: A detached keyboard with a typewriter-style keyboard is standard. COMPETITION: Anderson Jacobson. ADDS, Hewlett-Packard, Lear Siegler. PRICE: $3,997 to $4.207 in single quantity units. CHARACTERISTICS The 4420 Buffered Display Terminal offers full editing and formatting capabilities and modularity. The microprocessor, VENDOR: Teletype Corporation, 5555 Touhy Avenue, drive logic, and power supply are all housed in the unit's I5-inch Skokie, Illinois 60076. Telephone (312) 982-2000. circular display base. DATE OF ANNOUNCEMENT: Model 4420-October 1980; Model 4424-0ctober 1981; Model 4430-June MANAGEMENT SUMMARY 1981. In October 1980, the Teletype Corporation introduced the DATE OF FIRST DELIVERY: Model 4420-November Model 4420 Data Terminal. Since that time, two additions ' 1980; Model 4424-January 1982; Model 4430-Decem have been added to the Teletype 4400 Series display termi ber 1981. nal family, Models 4424 and 4430. All three units feature ergonomic design and ASCII compatibility. NUMBER DELIVERED TO DATE: Information not available. Model 4420 is a standalone terminal for point-to-point and SERVICED BY: Teletype Corporation. general purpose applications. This unit offers user-friendly operating features and ergonomic design. Model 4424 of CONFIGURATION fers the same basic features as Model 4420, plus interactive The 4400 Series display terminals are standalone units buffering capabilities. featuring a display mounted on a tiltable IS-inch circular base and a detached keyboard. -
Prime Computer User Guide for Terminals
Prime Computer User Guide MAN 1946, For Terminals MARCH /975 KEV, 7, PRIME COMPUTER. INC.. 145 PENNSYLVANIA AVENUE. FRAMINGHAM, MA. 01701 MAN 1946 PRIME SYSTEM AND USER TERMINALS USER GUIDE March 1975 PIRI A COMPUTER, INC. [145 Pennsylvania Ave., Framingham, Mass., 01701] First Printing March 1975 Copyright 1975 by Prime Computer, Incorporated 145 Pennsylvania Avenue Framingham, Massachusetts 01701 Performance characteristics are subject to change without notice. ii CONTENTS SECTION 1 INTRODUCTION SCOPE OF HANDBOOK PRIME SYSTEM AND USER TERMINALS CRT TERMINAL SPECIFICATIONS TELETYPE MODEL 33 SPECIFICATIONS SECTION 2 OPERATION CRT TERMINALS TELETYPE TERMINALS LOW SPEED TAPE UNITS SECTION 3 INSTALLATION SITE PLANNING INSTALLATION - CRI TERMINAL INSTALLATION - TELETYPEWRITER (MODEL ASR-33) CABLING SECTION 4 SYSTEM LEVEL PROGRAMMING DOS AND DOS/VM COMMANDS FORTRAN FORMATTED I/O IOCS ROUTINES SECTION 5 ASSEMBLY LANGUAGE PROGRAMMING PROGRAMMING TERMINALS THROUGH SYSTEM OPTION CONTROLLER SPECIAL FEATURES AMLC PROGRAMMING SECTION 6 TEST AND MAINTENANCE LOADING TEST PROGRAMS TERMINAL TEST PROGRAM iil CONTENTS Pace APPENDICES A TELETYPE STRAPPING A-1 B USING OPTIONAL VISTAR TERMINAL B-1 SOFTWARE ALTERATIONS FOR HIGHER TERMINAL C-1 OPERATING SPEEDS EIA CABLE STRAPPING FOR ALTERNATE TERMINALS D-1 iV ILLUSTRATIONS Figure No. 1-1 Prime System and User Terminal Configurations 3-1 CRT Terminal Rear Interface Panel 3-2 Wiring to Display Current Loop Terminal Strip 3-3 Model 33 Typing Unit Hold-Down Screw 3-8 Storage 3-4 Model 33 Cover Mounting 3-8 3-5 Model 33 and Stand 3-9 3-6 External Connections to S.0.C. 3-12 5-7 Connecting Terminals to CPU Serial 3-13 I/O Ports 3-8 Cabling Terminals to Direct-Connect AMLC 3-14 TABLES Table No. -
Issue #81-92, 1976
ISSN 0090-1350 LIBRARY NETWORK/MEDLARS TECHNICAL BULLETIN of the Library Component of the Biomedical Communications Network No 81 January 197 THE CONTENTS OF THIS PUBLICATION ARE NOT COPYRIGHTED AND MAY BE FREELY REPRODUCED TABLE OF CONTENTS Page Journal Citation Data Bases 2 On-line Technical Notes 2 Proposed Conversion from TSO to TCAM Message Handler As NLM's Teleprocessing Interface 5 Hedges , 9 Responsible Use of On-line Data Bases 11 An Experiment in On-Site Training, Madison, Wisconsin — December 15-19, 1975 12 Tumor Key Errata 14 MEDLINE Trainees at the University of Wisconsin, December 15, 1975 14 New Serials Announcement - December 1975 15 MEDLINE Trainees at NLM, January 12, 1976 17 U.S. DEPARTMENT OF HEALTH, EDUCATION, AND WELFARE Public Health Service National Institutes of Health LIBRARY NETWORK/MEDLARS TECHNICAL BULLETIN of the Library Component of the Biomedlcal Communications Network JOURNAL CITATION DATA BASES EDITOR Grace H. McCarn Head, MEDLARS Management Section MEDLINE and SDILINS were updated with National Library of Medicine February 1976 citations at NLM and SUNY on 8600 Rockville Pike January 12. The sizes, Index Medicus date Bethesda, Maryland 20014 ranges, and entry date ranges are given (301) 496-6193 TWX: 710-824-9616 below: ASSISTANT EDITOR P.E. Pothier MEDLINE (Jan 74 - Feb 76) - 486,93? (Entry Dates: 731130 to 760102) TECHNICAL NOTES EDITOR Leonard J. Bahlman SDILINE (Feb 76) - 21,138 (Entry Dates: 751210 to 761012) The LIBRARY NETWORK/MEDLARS TECHNICAL BULLETIN is issued monthly by the Office of the Associate Director for Library Operations. ON-LINE TECHNICAL NOTES PLEASE QUERY THE NLM/ON-LINE NEWS FILES DAILY FOR SPECIAL NOTICES AND MESSAGES Whenever applicable, in the margin beside each Technical Note., users will be referred to the section/page of the NLM On-Line Services Reference Manual which is considered most relevant to the item being discussed (e.g.., Manual II-9) .