Observations on the Development of an Operating System
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Xerox 4890 Highlight Color Laser Printing System Product Reference
XEROX Xerox 4890 HighLight Color Laser Printing System Product Reference Version 5.0 November 1994 720P93720 Xerox Corporation 701 South Aviation Boulevard El Segundo, California 90245 ©1991, 1992, 1993, 1994 by Xerox Corporation. All rights reserved. Copyright protection claimed includes all forms and matters of copyrightable material and information now allowed by statutory or judicial law or hereinafter granted, including without limitation, material generated from the software programs which are displayed on the screen such as icons, screen displays, looks, etc. November 1994 Printed in the United States of America. Publication number: 721P82591 Xerox® and all Xerox products mentioned in this publication are trademarks of Xerox Corporation. Products and trademarks of other companies are also acknowledged. Changes are periodically made to this document. Changes, technical inaccuracies, and typographic errors will be corrected in subsequent editions. This book was produced using the Xerox 6085 Professional Computer System. The typefaces used are Optima, Terminal, and monospace. Table of contents 1. LPS fundamentals 1-1 Electronic printing 1-1 Advantages 1-1 Highlight color 1-2 Uses for highlight color in your documents 1-2 How highlight color is created 1-2 Specifying 4890 colors 1-3 Color-related software considerations 1-4 Adding color to line printer and LCDS data streams 1-4 Adding color to Interpress and PostScript data streams 1-5 Adding color to forms 1-6 Fonts 1-8 Acquiring and loading fonts 1-9 LPS production process overview 1-9 Ink referencing 1-10 Unformatted data 1-10 Formatted data 1-11 4890 HighLight Color LPS major features 1-11 4890 feature reference 1-12 LPS connection options 1-12 System controller 1-13 Optional peripheral cabinet 1-13 Printer 1-13 Paper handling 1-14 Forms 1-15 Fonts 1-15 Printed format 1-15 Highlight color 1-16 Types of output 1-16 DFA/Segment Management 1-16 SCSI System Disk/Floppy Disk 1-18 Color Enhancements 1-18 XEROX 4890 HIGHLIGHT COLOR LPS PRODUCT REFERENCE iii TABLE OF CONTENTS 2. -
Msc THESIS Exploiting the Reconfigurability of Ρ-VEX Processor for Real-Time Robotic Applications
Computer Engineering 2016 Mekelweg 4, 2628 CD Delft The Netherlands http://ce.et.tudelft.nl/ MSc THESIS Exploiting the Reconfigurability of ρ-VEX Processor for Real-Time Robotic Applications Muhammad Muneeb Yousaf Abstract Autonomous mobile robots generally have limited computational power on-board, and they have to perform their tasks in real-time in order to interact with their surroundings effectively. Therefore, there is a need to utilize the available computational capabilities ef- ficiently. The ρ-VEX is a run-time reconfigurable VLIW processor. CE-MS-2016-10 This unique processor allows separation of its issue lanes to form independently operating processing cores. Switching between these configurations during run-time allows optimizing the computing re- sources for the task(s) it is performing. In this project FreeRTOS is ported to the ρ-VEX processor and a control layer is developed. FreeRTOS manages the applications based on given real time parameters. The control layer decides the number of active cores (hardware contexts) and issue width of each core to best match the processing requirements of the applications. In this way, FreeRTOS and the control layer together can reconfigure the number of active cores at run-time. This is a very unique feature of this thesis project and can not be found in any other multicore implementation of FreeRTOS. The control layer along with FreeR- TOS provides the user a facility to run applications under real-time constraints and with the best possible efficiency. In order to evaluate the performance, the overhead of the FreeRTOS is quantified and a performance comparison is made between several configurations of this system. -
TCD-SCSS-T.20121208.032.Pdf
AccessionIndex: TCD-SCSS-T.20121208.032 Accession Date: 8-Dec-2012 Accession By: Prof.J.G.Byrne Object name: Burroughs 1714 Vintage: c.1972 Synopsis: Commercial zero-instruction-set computer used by the Dept.Computer Science from 1973-1979. Just two prototyping boards survive. Description: The Burroughs 1714 was one of their B1700 family, introduced in 1972 to compete with IBM's System/3. The original research for the B1700 series, initially codenamed the Proper Language Processor or Program Language Processor (PLP) was done at the Burroughs Pasadena plant. The family were known as the Burroughs Small Systems, as distinct from the Burroughs Medium Systems (B2000, etc) and the Burroughs Large Systems (B5000, etc). All the Burroughs machines had high-level language architectures. The large were ALGOL machines, the medium COBOL machines, but the small were universal machines. The principal designer of the B1700 family was Wayne T. Wilner. He designed the architecture as a zero-instruction-set computer, an attempt to bridge the inefficient semantic gap between the ideal solution to a particular programming problem and the real physical hardware. The B1700 architecture executed idealized virtual machines for any language from virtual memory. It achieved this feat by microprogramming, see the microinstruction set further below. The Burroughs MCP (Master Control Program) would schedule a particular job to run, then preload the interpreter for whatever language was required into a writeable control store, allowing the machine to emulate the desired virtual machine. The hardware was optimised for this. It had bit-addressable memory, a variable-width ALU, could OR in data from a register into the instruction register (for very efficient instruction parsing), and the output of the ALU was directly addressable as X+Y or X-Y read-only registers. -
MTS on Wikipedia Snapshot Taken 9 January 2011
MTS on Wikipedia Snapshot taken 9 January 2011 PDF generated using the open source mwlib toolkit. See http://code.pediapress.com/ for more information. PDF generated at: Sun, 09 Jan 2011 13:08:01 UTC Contents Articles Michigan Terminal System 1 MTS system architecture 17 IBM System/360 Model 67 40 MAD programming language 46 UBC PLUS 55 Micro DBMS 57 Bruce Arden 58 Bernard Galler 59 TSS/360 60 References Article Sources and Contributors 64 Image Sources, Licenses and Contributors 65 Article Licenses License 66 Michigan Terminal System 1 Michigan Terminal System The MTS welcome screen as seen through a 3270 terminal emulator. Company / developer University of Michigan and 7 other universities in the U.S., Canada, and the UK Programmed in various languages, mostly 360/370 Assembler Working state Historic Initial release 1967 Latest stable release 6.0 / 1988 (final) Available language(s) English Available programming Assembler, FORTRAN, PL/I, PLUS, ALGOL W, Pascal, C, LISP, SNOBOL4, COBOL, PL360, languages(s) MAD/I, GOM (Good Old Mad), APL, and many more Supported platforms IBM S/360-67, IBM S/370 and successors History of IBM mainframe operating systems On early mainframe computers: • GM OS & GM-NAA I/O 1955 • BESYS 1957 • UMES 1958 • SOS 1959 • IBSYS 1960 • CTSS 1961 On S/360 and successors: • BOS/360 1965 • TOS/360 1965 • TSS/360 1967 • MTS 1967 • ORVYL 1967 • MUSIC 1972 • MUSIC/SP 1985 • DOS/360 and successors 1966 • DOS/VS 1972 • DOS/VSE 1980s • VSE/SP late 1980s • VSE/ESA 1991 • z/VSE 2005 Michigan Terminal System 2 • OS/360 and successors -
Considerations for the SDP Operating System
DocuSign Envelope ID: E376CF60-053D-4FF0-8629-99235147B54B Considerations for the SDP Operating System Document Number .......SDP Memo 063 ………………………………………………………………… Document Type .. MEMO ……………………………………………………………………… ………… Revision . 01 ………………………………………………………………………… ………… ………… Author . N. Erdödy, R. O’Keefe ………………………………………………………………………… … Release Date ... .2018-08-31 …………………………………………………………………………… … Document Classification ... Unrestricted ………………………………………………………………… Status ... Draft ………………………………………………………………………………………… … Document No: 063 Unrestricted Revision: 01 Author: N. Erdödy Release Date: 2018-08-31 Page 1 of 56 DocuSign Envelope ID: E376CF60-053D-4FF0-8629-99235147B54B Lead Author Designation Affiliation Nicolás Erdödy SDP Team Open Parallel Ltd. NZ SKA Alliance (NZA). Signature & Date: 10/21/2018 8:19:36 PM PDT With contributions and reviews Affiliation greatly appreciated from Dr. Richard O’Keefe SDP Team, NZA University of Otago - Open Parallel (NZA) Dr. Andrew Ensor Director, NZA AUT University (NZA) Piers Harding SDP Team, NZA Catalyst IT (NZA) Robert O’Brien Systems Engineer / Security Independent Anonymous Reviewer CEng (UK), CPEng (NZ) Manager, NZ Govt ORGANISATION DETAILS Name Science Data Processor Consortium Address Astrophysics Cavendish Laboratory JJ Thomson Avenue Cambridge CB3 0HE Website http://ska-sdp.org Email [email protected] Document No: 063 Unrestricted Revision: 01 Author: N. Erdödy Release Date: 2018-08-31 Page 2 of 56 DocuSign Envelope ID: E376CF60-053D-4FF0-8629-99235147B54B 1. SDP Memo Disclaimer The SDP memos are designed to allow the quick recording of investigations and research done by members of the SDP. They are also designed to raise questions about parts of the SDP design or SDP process. The contents of a memo may be the opinion of the author, not the whole of the SDP. Acknowledgement: The authors wish to acknowledge the inputs, corrections and continuous support from the NZA Team Members Dr. -
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 -
Newsletter #9-#10
PASCAL USER'S GROUP Pascal. News (FORMERLY PASCAL NEWSLETTER) NUMBERS 9 AND 10 (COMBINED ISSUE) COMMUNICATIONS ABOUT THE PROGRAMMING LANGUAGE PASCAL BY PASCALERS SEPTEMBER" 1977 (Y)o TAB LEO F CON TEN T S N I'- '0 U'I C/I tG c.. U'I '-tG 0.0 C c.. tG o POLICY: Pascal News wtG::.::- 3 . 0.0 M 1 ALL PURPOSE COUPON ~ C/I tG "tJ_ "tJ LU .- 3 EDITOR'S CONTRIBUTION .- .&; :>'Ou tG (Y) .- 4 HERE AND THERE QI'-3 4 News .. ..... 8 Conferences (I) .... 8 Books and Articles Ct: m 11 Past Issues of Pascal Newsletter .... 11 PUG Finances ..J X 12 Roster LU ....== 39 ART! CLES ~. 39 "Pascal at Sydney University" - A. J. Gerber andC. C. Morgan 40 "Disposing of Dispose" - Stephen P. Wagstaff 42 "What is a Textfile?" - William C. Price 43 "Generic Routines and Variable Types in Pascal II - B. Austermuehl and H.-J. Hoffmann 47 OPEN FORUM FOR MEMBERS 54 Special Topic: Micro/Personal Computers and Pascal 58 Special Topic: Pascal Standards L 60 IMPLEMENTATION NOTES 60 Checklist 60 General Information ".. 61 Software Writing Tools 61 Portable Pascals 63 Pascal Variants 64 Feature Implementation Notes 73 Machine Dependent Implementations 113 POLICY: Pascal User's Group r- ! POLICY: PASCAL NEWS (77/09/01) * Pascal News is the official but informal publication of the User's Group. ~ Pascal News contains all we (the editors) know about Pascal; we use it as the vehicle to answer all inquiries because our physical energy and resources for answering individual requests are finite. As PUGgrows, we unfortunately succumb to the reality of (1) having to insist that people who need to know "about Pascal" join PUGand read Pascal News - that is why we spend time to produce it! and (2) refusing to return phone calls or answer letters full of questions - we will pass the questions on to the readership of Pascal News. -
Correctional Data Analysis Systems. INSTITUTION Sam Honston State Univ., Huntsville, Tex
I DocdnENT RESUME ED 209 425 CE 029 723 AUTHOR Friel, Charles R.: And Others TITLE Correctional Data Analysis Systems. INSTITUTION Sam Honston State Univ., Huntsville, Tex. Criminal 1 , Justice Center. SPONS AGENCY Department of Justice, Washington, D.C. Bureau of Justice Statistics. PUB DATE 80 GRANT D0J-78-SSAX-0046 NOTE 101p. EDRS PRICE MF01fPC05Plus Postage. DESCRIPTORS Computer Programs; Computers; *Computer Science; Computer Storage Devices; *Correctional Institutions; *Data .Analysis;Data Bases; Data Collection; Data Processing; *Information Dissemination; *Iaformation Needs; *Information Retrieval; Information Storage; Information Systems; Models; State of the Art Reviews ABSTRACT Designed to help the-correctional administrator meet external demands for information, this detailed analysis or the demank information problem identifies the Sources of teguests f6r and the nature of the information required from correctional institutions' and discusses the kinds of analytic capabilities required to satisfy . most 'demand informhtion requests. The goals and objectives of correctional data analysis systems are ontliled. Examined next are the content and sources of demand information inquiries. A correctional case law demand'information model is provided. Analyzed next are such aspects of the state of the art of demand information as policy considerations, procedural techniques, administrative organizations, technology, personnel, and quantitative analysis of 'processing. Availa4ie software, report generators, and statistical packages -
Operating Systems
Operating Systems Julian Bradfield [email protected] IF{4.07 Course Aims I general understanding of structure of modern computers I purpose, structure and functions of operating systems I illustration of key OS aspects by example Course Outcomes By the end of the course you should be able to I describe the general architecture of computers I describe, contrast and compare differing structures for operating systems I understand and analyse theory and implementation of: processes, resource control (concurrency etc.), physical and virtual memory, scheduling, I/O and files In addition, during the practical exercise and associated self-study, you will: I become familiar (if not already) with the C language, gcc compiler, and Makefiles I understand the high-level structure of the Linux kernel both in concept and source code I acquire a detailed understanding of one aspect (the scheduler) of the Linux kernel Course Outline This outline is subject to modification during the course. I Introduction; history of computers; overview of OS (this lecture) I Computer architecture (high-level view); machines viewed at different abstraction levels I Basic OS functions and the historical development of OSes I Processes (1) I Processes (2) { threads and SMP I Scheduling (1) { cpu utilization and task scheduling I Concurrency (1) { mutual exclusion, synchronization I Concurrency (2) { deadlock, starvation, analysis of concurrency I Memory (1) { physical memory, early paging and segmentation techniques I Memory (2) { modern virtual memory concepts and techniques I I/O (1) { low level I/O functions I I/O (2) { high level I/O functions and filesystems I Case studies: one or both of: the Windows NT family; IBM's System/390 family { N.B. -
Unit 3 Operating System
UNIT 3 OPERATING SYSTEM STRUCTURE 3.1 Objective 3.2 Programming Language 3.3 Operating System 3.3.1 Single User Operating system 3.3.2 Batch Operating System 3.3.3 Real time Operating system 3.3.4 Multi users operating system 3.3.5 Distributed Operating System 3.3.6 Embedded Operating System 3.3.7 Network Operating System 3.8 Local Area Network (LAN) 3.9 Wide Area Network (WAN) 3.10 Popular Operating Systems 3.10.1 Windows 3.10.2 Mac OS X 3.10.3 UNIX 3.10.4 Linux 3.11 Application Software 3.12 Virus and other destructive programmes 3.13 Don’ts while running software 3.14 Do’s while running of software 3.15 Future trends in operating system 3.16 Let us sum up 3.17 Model Answers to check your progress 3.1 OBJECTIVE In units 1 and 2, we have discussed about hardware components of the computer. This unit is about software component of computer. A computer is a dead machine without software. Software is the soul of computer. It brings life to computer and induces work environment conducive for users. After reading this unit, you will be able: 1 To explain role of software, To classify software on the basis of its functions, To understand functions of the operating system, and To understand different types of operating system 3.2 PROGRAMMING LANGUAGES Computer works on sequentially arranged instructions. Sequence of related instructions is called programme. Computer programmes are also known as software. Thus, the term software denotes predefined sequence of instructions used to execute specific tasks. -
MTS Volume 1, for Example, Introduces the User to MTS and Describes in General the MTS Operating System, While MTS Volume 10 Deals Exclusively with BASIC
M T S The Michigan Terminal System The Michigan Terminal System Volume 1 Reference R1001 November 1991 University of Michigan Information Technology Division Consulting and Support Services DISCLAIMER The MTS manuals are intended to represent the current state of the Michigan Terminal System (MTS), but because the system is constantly being developed, extended, and refined, sections of this volume will become obsolete. The user should refer to the Information Technology Digest and other ITD documentation for the latest information about changes to MTS. Copyright 1991 by the Regents of the University of Michigan. Copying is permitted for nonprofit, educational use provided that (1) each reproduction is done without alteration and (2) the volume reference and date of publication are included. 2 CONTENTS Preface ........................................................................................................................................................ 9 Preface to Volume 1 .................................................................................................................................. 11 A Brief Overview of MTS .......................................................................................................................... 13 History .................................................................................................................................................. 13 Access to the System ........................................................................................................................... -
CS 1550: Introduction to Operating Systems
Operating Systems Lecture1 - Introduction Golestan University Hossein Momeni [email protected] Outline What is an operating system? Operating systems history Operating system concepts System calls Operating system structure User interface to the operating system Anatomy of a system call 2 Operating Systems Course- By: Hossein Momeni Samples of Operating Systems IBSYS (IBM 7090) MACH OS/360 (IBM 360) Apollo DOMAIN TSS/360 (360 mod 67) Unix (System V & BSD) Michigan Terminal System Apple Mac (v. 1– v. 9) CP/CMS & VM 370 MS-DOS MULTICS (GE 645) Windows NT, 2000, XP, 7 Alto (Xerox PARC) Novell Netware Pilot (Xerox STAR) CP/M Linux IRIX FreeBSD Solaris PalmOS MVS PocketPC VxWorks VxWorks 3 Operating Systems Course- By: Hossein Momeni Samples of Operating Systems (continue…) 4 Operating Systems Course- By: Hossein Momeni What is an Operating System? An Operating System is a program that acts as an intermediary/interface between a user of a computer and the computer hardware. It is an extended machine Hides the messy details which must be performed Presents user with a virtual machine, easier to use It is a resource manager Each program gets time with the resource Each program gets space on the resource 5 Operating Systems Course- By: Hossein Momeni Static View of System Components User 1 User 2 User 3 User 4 … User n Compiler Editor Database Calculator WP Operating System Hardware 6 Operating Systems Course- By: Hossein Momeni Dynamic View of System Components 7 Operating Systems Course- By: Hossein Momeni