Open Source IS Not a Business Model
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Intellectual Property Law Week Helpful Diversity Or Hopeless Confusion?
Intellectual Property Law Week Open Source License Proliferation: Helpful Diversity or Hopeless Confusion? Featuring Professor Robert Gomulkiewicz University of Washington School of Law Thursday, March 18, 2010 12:30-2:00 PM Moot Courtroom Abstract: One prominent issue among free and open source software (FOSS) developers (but little noticed by legal scholars) has been "license proliferation." "Proliferation" refers to the scores of FOSS licenses that are now in use with more being created all the time. The Open Source Initiative ("OSI") has certified over seventy licenses as conforming to the Open Source Definition, a key measure of whether a license embodies FOSS principles. Many believe that license proliferation encumbers and retards the success of FOSS. Why does proliferation occur? What are the pros and cons of multiple licenses? Does the growing number of FOSS licenses represent hopeless confusion (as many assume) or (instead) helpful diversity? To provide context and color, these issues are examined using the story of his creation of the Simple Public License (SimPL) and submission of the SimPL to the OSI for certification. Professor Robert Gomulkiewicz joined the UW law school faculty in 2002 to direct the graduate program in Intellectual Property Law and Policy. Prior to joining the faculty, he was Associate General Counsel at Microsoft where he led the group of lawyers providing legal counsel for development of Microsoft's major systems software, desktop applications, and developer tools software (including Windows and Office). Before joining Microsoft, Professor Gomulkiewicz practiced law at Preston, Gates & Ellis where he worked on the Apple v. Microsoft case. Professor Gomulkiewicz has published books and law review articles on open source software, mass market licensing, the UCITA, and legal protection for software. -
Cisco Telepresence TC Software Licensing Information (TC4.1)
Cisco TelePresence TC Software License information guide TC Software FEBRUARY 2011 Legal information and third party copyright and licenses For Cisco TelePresence products using TC software D14767.02 License Information for products using TC Software, TC4 February 2011. 1 © 2010-2011 Cisco Systems, Inc. All rights reserved. www.cisco.com Cisco TelePresence TC Software License information guide ipcalc-1.3, ipcalc-license ...................................................................................... 16 TA - ToC - Hidden Table of Contents iproute-2.6.26, GPLv2 .......................................................................................16 What’stext anchor in iptables-1.4.28, GPLv2......................................................................................16 About this guide ..............................................................................................................4 iputils-s20071127, iputils-bsd-license .................................................... 16 The products covered by this guide: .....................................................4 jpeg lib, jpeg-license ................................................................................................ 17 this guide? User documentation .............................................................................................4 Kmod-*, GPLv2 ........................................................................................................19 Software download ................................................................................................4 -
RT-ROS: a Real-Time ROS Architecture on Multi-Core Processors
Future Generation Computer Systems 56 (2016) 171–178 Contents lists available at ScienceDirect Future Generation Computer Systems journal homepage: www.elsevier.com/locate/fgcs RT-ROS: A real-time ROS architecture on multi-core processors Hongxing Wei a,1, Zhenzhou Shao b, Zhen Huang a, Renhai Chen d, Yong Guan b, Jindong Tan c,1, Zili Shao d,∗,1 a School of Mechanical Engineering and Automation, Beihang University, Beijing, 100191, PR China b College of Information Engineering, Capital Normal University, Beijing, 100048, PR China c Department of Mechanical, Aerospace, and Biomedical Engineering, The University of Tennessee, Knoxville, TN, 37996-2110, USA d Department of Computing, The Hong Kong Polytechnic University, Hong Kong, China article info a b s t r a c t Article history: ROS, an open-source robot operating system, is widely used and rapidly developed in the robotics Received 6 February 2015 community. However, running on Linux, ROS does not provide real-time guarantees, while real-time tasks Received in revised form are required in many robot applications such as robot motion control. This paper for the first time presents 20 April 2015 a real-time ROS architecture called RT-RTOS on multi-core processors. RT-ROS provides an integrated Accepted 12 May 2015 real-time/non-real-time task execution environment so real-time and non-real-time ROS nodes can be Available online 9 June 2015 separately run on a real-time OS and Linux, respectively, with different processor cores. In such a way, real-time tasks can be supported by real-time ROS nodes on a real-time OS, while non-real-time ROS nodes Keywords: Real-time operating systems on Linux can provide other functions of ROS. -
OPERATING SYSTEMS.Ai
Introduction Aeroflex Gaisler provides LEON and ERC32 users with a wide range of popular embedded operating systems. Ranging from very small footprint task handlers to full featured Real-Time Operating System (RTOS). A summary of available operating systems and their characteristics is outlined below. VxWorks The VxWorks SPARC port supports LEON3/4 and LEON2. Drivers for standard on-chip peripherals are included. The port supports both non-MMU and MMU systems allowing users to program fast and secure applications. Along with the graphical Eclipse based workbench comes the extensive VxWorks documentation. • MMU and non-MMU system support • SMP support (in 6.7 and later) • Networking support (Ethernet 10/100/1000) • UART, Timer, and interrupt controller support • PCI, SpaceWire, CAN, MIL-STD-1553B, I2C and USB host controller support • Eclipse based Workbench • Commercial license ThreadX The ThreadX SPARC port supports LEON3/4 and its standard on-chip peripherals. ThreadX is an easy to learn and understand advanced pico-kernel real-time operating system designed specifically for deeply embedded applications. ThreadX has a rich set of system services for memory allocation and threading. • Non-MMU system support • Bundled with newlib C library • Support for NetX, and USBX ® • Very small footprint • Commercial license Nucleus Nucleus is a real time operating system which offers a rich set of features in a scalable and configurable manner. • UART, Timer, Interrupt controller, Ethernet (10/100/1000) • TCP offloading and zero copy TCP/IP stack (using GRETH GBIT MAC) • USB 2.0 host controller and function controller driver • Small footprint • Commercial license LynxOS LynxOS is an advanced RTOS suitable for high reliability environments. -
FOSS Philosophy 6 the FOSS Development Method 7
1 Published by the United Nations Development Programme’s Asia-Pacific Development Information Programme (UNDP-APDIP) Kuala Lumpur, Malaysia www.apdip.net Email: [email protected] © UNDP-APDIP 2004 The material in this book may be reproduced, republished and incorporated into further works provided acknowledgement is given to UNDP-APDIP. For full details on the license governing this publication, please see the relevant Annex. ISBN: 983-3094-00-7 Design, layout and cover illustrations by: Rezonanze www.rezonanze.com PREFACE 6 INTRODUCTION 6 What is Free/Open Source Software? 6 The FOSS philosophy 6 The FOSS development method 7 What is the history of FOSS? 8 A Brief History of Free/Open Source Software Movement 8 WHY FOSS? 10 Is FOSS free? 10 How large are the savings from FOSS? 10 Direct Cost Savings - An Example 11 What are the benefits of using FOSS? 12 Security 13 Reliability/Stability 14 Open standards and vendor independence 14 Reduced reliance on imports 15 Developing local software capacity 15 Piracy, IPR, and the WTO 16 Localization 16 What are the shortcomings of FOSS? 17 Lack of business applications 17 Interoperability with proprietary systems 17 Documentation and “polish” 18 FOSS SUCCESS STORIES 19 What are governments doing with FOSS? 19 Europe 19 Americas 20 Brazil 21 Asia Pacific 22 Other Regions 24 What are some successful FOSS projects? 25 BIND (DNS Server) 25 Apache (Web Server) 25 Sendmail (Email Server) 25 OpenSSH (Secure Network Administration Tool) 26 Open Office (Office Productivity Suite) 26 LINUX 27 What is Linux? -
The General Public License Version 3.0: Making Or Breaking the FOSS Movement Clark D
Michigan Telecommunications and Technology Law Review Volume 14 | Issue 2 2008 The General Public License Version 3.0: Making or Breaking the FOSS Movement Clark D. Asay Follow this and additional works at: http://repository.law.umich.edu/mttlr Part of the Computer Law Commons, and the Science and Technology Law Commons Recommended Citation Clark D. Asay, The General Public License Version 3.0: Making or Breaking the FOSS Movement, 14 Mich. Telecomm. & Tech. L. Rev. 265 (2008). Available at: http://repository.law.umich.edu/mttlr/vol14/iss2/1 This Article is brought to you for free and open access by the Journals at University of Michigan Law School Scholarship Repository. It has been accepted for inclusion in Michigan Telecommunications and Technology Law Review by an authorized editor of University of Michigan Law School Scholarship Repository. For more information, please contact [email protected]. THE GENERAL PUBLIC LICENSE VERSION 3.0: MAKING OR BREAKING THE FOSS MOVEMENT? Clark D. Asay* Cite as: Clark D. Asay, The GeneralPublic License Version 3.0: Making or Breaking the Foss Movement? 14 MICH. TELECOMM. TECH. L. REV. 265 (2008), available at http://www.mttlr.org/volfourteen/asay.pdf I. INTRODUCTION ......................................................................... 266 II. FREE SOFTWARE V. OPEN SOURCE ........................................... 268 A. The FSF's Vision of Free Software..................................... 268 B. The OSI's Vision: A Different Movement? ......................... 270 C. PracticalDifferences? ....................................................... 271 III. G PLv3: ITS T ERM S................................................................... 274 A. GPLv3 's Anti-DRM Section ............................................... 274 1. Its C ontents ................................................................. 274 2. FSF's Position on DRM .............................................. 276 3. The Other Side of the Coin? OSI Sympathizers ........ -
ENT-AN1144 Application Note SPI Flash Design for Vcore-III
ENT-AN1144 Application Note SPI Flash Design for VCore-III Microsemi makes no warranty, representation, or guarantee regarding the information contained herein or the suitability of its products and services for any particular purpose, nor does Microsemi assume any liability whatsoever arising out of the application or use of any product or circuit. The products sold hereunder and any other products sold by Microsemi have been subject to limited testing and should not be used in conjunction with mission-critical equipment or applications. Any performance specifications are believed to be reliable but are not verified, and Buyer must conduct and complete all performance and other testing of the products, alone and together with, or installed in, any end-products. Buyer shall not Microsemi Corporate Headquarters rely on any data and performance specifications or parameters provided by Microsemi. It is the Buyer's responsibility to One Enterprise, Aliso Viejo, independently determine suitability of any products and to test and verify the same. The information provided by Microsemi CA 92656 USA hereunder is provided “as is, where is” and with all faults, and the entire risk associated with such information is entirely Within the USA: +1 (800) 713-4113 with the Buyer. Microsemi does not grant, explicitly or implicitly, to any party any patent rights, licenses, or any other IP Outside the USA: +1 (949) 380-6100 rights, whether with regard to such information itself or anything described by such information. Information provided in this Fax: +1 (949) 215-4996 document is proprietary to Microsemi, and Microsemi reserves the right to make any changes to the information in this Email: [email protected] document or to any products and services at any time without notice. -
Timing Comparison of the Real-Time Operating Systems for Small Microcontrollers
S S symmetry Article Timing Comparison of the Real-Time Operating Systems for Small Microcontrollers Ioan Ungurean 1,2 1 Faculty of Electrical Engineering and Computer Science; Stefan cel Mare University of Suceava, 720229 Suceava, Romania; [email protected] 2 MANSiD Integrated Center, Stefan cel Mare University, 720229 Suceava, Romania Received: 9 March 2020; Accepted: 1 April 2020; Published: 8 April 2020 Abstract: In automatic systems used in the control and monitoring of industrial processes, fieldbuses with specific real-time requirements are used. Often, the sensors are connected to these fieldbuses through embedded systems, which also have real-time features specific to the industrial environment in which it operates. The embedded operating systems are very important in the design and development of embedded systems. A distinct class of these operating systems is real-time operating systems (RTOSs) that can be used to develop embedded systems, which have hard and/or soft real-time requirements on small microcontrollers (MCUs). RTOSs offer the basic support for developing embedded systems with applicability in a wide range of fields such as data acquisition, internet of things, data compression, pattern recognition, diversity, similarity, symmetry, and so on. The RTOSs provide basic services for multitasking applications with deterministic behavior on MCUs. The services provided by the RTOSs are task management and inter-task synchronization and communication. The selection of the RTOS is very important in the development of the embedded system with real-time requirements and it must be based on the latency in the handling of the critical operations triggered by internal or external events, predictability/determinism in the execution of the RTOS primitives, license costs, and memory footprint. -
GNU / Linux and Free Software
GNU / Linux and Free Software GNU / Linux and Free Software An introduction Michael Opdenacker Free Electrons http://free-electrons.com Created with OpenOffice.org 2.x GNU / Linux and Free Software © Copyright 2004-2007, Free Electrons Creative Commons Attribution-ShareAlike 2.5 license http://free-electrons.com Sep 15, 2009 1 Rights to copy Attribution ± ShareAlike 2.5 © Copyright 2004-2007 You are free Free Electrons to copy, distribute, display, and perform the work [email protected] to make derivative works to make commercial use of the work Document sources, updates and translations: Under the following conditions http://free-electrons.com/articles/freesw Attribution. You must give the original author credit. Corrections, suggestions, contributions and Share Alike. If you alter, transform, or build upon this work, you may distribute the resulting work only under a license translations are welcome! identical to this one. For any reuse or distribution, you must make clear to others the license terms of this work. Any of these conditions can be waived if you get permission from the copyright holder. Your fair use and other rights are in no way affected by the above. License text: http://creativecommons.org/licenses/by-sa/2.5/legalcode GNU / Linux and Free Software © Copyright 2004-2007, Free Electrons Creative Commons Attribution-ShareAlike 2.5 license http://free-electrons.com Sep 15, 2009 2 Contents Unix and its history Free Software licenses and legal issues Free operating systems Successful project highlights Free Software -
Free and Open Source Software: “Commons” Or Clubs
To be published in the book “Conference for the 30th Anniversary of the CRID” (Collection du CRIDS) Free and Open Source Software Licensing: A reference for the reconstruction of “virtual commons”?1 Philippe LAURENT Senior Researcher at the CRIDS (University of Namur - Belgium) Lawyer at the Brussels Bar (Marx, Van Ranst, Vermeersch & Partners) The impact of the Free, Libre and Open Source Software (FLOSS) movement has been compared to a revolution in the computing world2. Beyond the philosophical and the sociological aspects of the movement, its most outstanding achievement is probably its penetration in the ICT market3. FLOSS has indeed reached a high level of economical maturity. It is not “just” an alternative movement any more, nor is it a simple option that companies of the field can choose to take or simply ignore. It is a reality that everyone has to acknowledge, understand and deal with, no matter which commercial strategy or business model is implemented. FLOSS is based upon an outstanding permissive licensing system coupled with an unrestricted access to the source code, which enables the licensee to modify and re-distribute the software at will. In such context, intellectual property is used in a versatile way, not to monopolize technology and reap royalties, but to foster creation on an open and collaborative basis. This very particular use of initially “privative” rights firstly amazed… then became source of inspiration. Indeed, scientists, academics and other thinkers noticed that the free and open source system actually worked quite well and gave birth to collaborative and innovative, but also commercially viable ecosystems. -
Anthony J. Massa
EMBEDDED SOFTWARE DEVELOPMENT WITH ECOS™ Anthony J. Massa EMBEDDED SOFTWARE DEVELOPMENT WITH ECOS Anthony J. Massa PRENTICE HALL PROFESSIONAL TECHNICAL REFERENCE UPPER SADDLE RIVER, NJ 07458 WWW.PHPTR.COM WWW.PHPTR.COM/MASSA/ Library of Congress Cataloging-in-Publication Data Massa, Anthony J. Embedded software development with eCos / Anthony J. Massa p. cm.--(Bruce Perens' Open source series) ISBN 0-13-035473-2 1. Embedded computer systems--Programming. 2. Application software--Development. 3. Real-time data processing. I. Title. II. Series. QA76.6 .M364317 2002 005.26--dc21 2002035507 Editorial/production supervision: Techne Group Cover design director: Jerry Votta Cover design: Anthony Gemmellaro Art director: Gail Cocker-Bogusz Interior design: Meg Van Arsdale Manufacturing buyer: Maura Zaldivar Editor-in-Chief: Mark L. Taub Editorial assistant: Kate Wolf Marketing manager: Bryan Gambrel Full-service production manager: Anne R. Garcia © 2003 Pearson Education, Inc. Publishing as Prentice Hall Professional Technical Reference Upper Saddle River, New Jersey 07458 This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at <http://www.opencontent.org/openpub/>). Prentice Hall books are widely used by corporations and government agencies for training, marketing, and resale. For information regarding corporate and government bulk discounts please contact: Corporate and Government Sales (800) 382-3419 or [email protected] Other company and product names mentioned herein are the trademarks or registered trademarks of their respective owners. All rights reserved. No part of this book may be reproduced, in any form or by any means, without permission in writing from the publisher. -
Elements of Free and Open Source Licenses: Features That Define Strategy
Elements Of Free And Open Source Licenses: Features That Define Strategy CAN: Use/reproduce: Ability to use, copy / reproduce the work freely in unlimited quantities Distribute: Ability to distribute the work to third parties freely, in unlimited quantities Modify/merge: Ability to modify / combine the work with others and create derivatives Sublicense: Ability to license the work, including possible modifications (without changing the license if it is copyleft or share alike) Commercial use: Ability to make use of the work for commercial purpose or to license it for a fee Use patents: Rights to practice patent claims of the software owner and of the contributors to the code, in so far these rights are necessary to make full use of the software Place warranty: Ability to place additional warranty, services or rights on the software licensed (without holding the software owner and other contributors liable for it) MUST: Incl. Copyright: Describes whether the original copyright and attribution marks must be retained Royalty free: In case a fee (i.e. contribution, lump sum) is requested from recipients, it cannot be royalties (depending on the use) State changes: Source code modifications (author, why, beginning, end) must be documented Disclose source: The source code must be publicly available Copyleft/Share alike: In case of (re-) distribution of the work or its derivatives, the same license must be used/granted: no re-licensing. Lesser copyleft: While the work itself is copyleft, derivatives produced by the normal use of the work are not and could be covered by any other license SaaS/network: Distribution includes providing access to the work (to its functionalities) through a network, online, from the cloud, as a service Include license: Include the full text of the license in the modified software.