Huawei Launches New Distributed Operating System, Harmonyos
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A Programmable Microkernel for Real-Time Systems∗
A Programmable Microkernel for Real-Time Systems∗ Christoph M. Kirsch Marco A.A. Sanvido Thomas A. Henzinger University of Salzburg VMWare Inc. EPFL and UC Berkeley [email protected] tah@epfl.ch ABSTRACT Categories and Subject Descriptors We present a new software system architecture for the im- D.4.7 [Operating Systems]: Organization and Design— plementation of hard real-time applications. The core of the Real-time systems and embedded systems system is a microkernel whose reactivity (interrupt handling as in synchronous reactive programs) and proactivity (task General Terms scheduling as in traditional RTOSs) are fully programma- Languages ble. The microkernel, which we implemented on a Strong- ARM processor, consists of two interacting domain-specific Keywords virtual machines, a reactive E (Embedded) machine and a proactive S (Scheduling) machine. The microkernel code (or Real Time, Operating System, Virtual Machine microcode) that runs on the microkernel is partitioned into E and S code. E code manages the interaction of the system 1. INTRODUCTION with the physical environment: the execution of E code is In [9], we advocated the E (Embedded) machine as a triggered by environment interrupts, which signal external portable target for compiling hard real-time code, and in- events such as the arrival of a message or sensor value, and it troduced, in [11], the S (Scheduling) machine as a universal releases application tasks to the S machine. S code manages target for generating schedules according to arbitrary and the interaction of the system with the processor: the exe- possibly non-trivial strategies such as nonpreemptive and cution of S code is triggered by hardware interrupts, which multiprocessor scheduling. -
The Design of the EMPS Multiprocessor Executive for Distributed Computing
The design of the EMPS multiprocessor executive for distributed computing Citation for published version (APA): van Dijk, G. J. W. (1993). The design of the EMPS multiprocessor executive for distributed computing. Technische Universiteit Eindhoven. https://doi.org/10.6100/IR393185 DOI: 10.6100/IR393185 Document status and date: Published: 01/01/1993 Document Version: Publisher’s PDF, also known as Version of Record (includes final page, issue and volume numbers) Please check the document version of this publication: • A submitted manuscript is the version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal. -
Informational Materials
Received by NSD/FARA Registration Unit 08/28/2019 1:05:54 PM Huawei Twitter and Facebook August 26 - 27 4% HuaweiUSA© (©HuaweiUSA • Aug 26 v Huawei hosted a reception @OneWorldNYC where media enjoyed stunning views and company updates 1 ■ I—h HuaweiUSA© @HuaweiUSA • Aug 26 4'A Huawei's Dongguan facility is "a lot like a Disneyland for tech research." HUAWEI @TechRadar takes a tour of the European-style campus. Huawei has built the Disneyland of tech R&D Its new campus is full of recreated European cities (P techradar.com Q 2 tl 2 O 12 £ Received by NSD/FARA Registration Unit 08/28/2019 1:05:54 PM Received by NSD/FARA Registration Unit 08/28/2019 1:05:54 PM #4 HuaweiUSAO @HuaweiUSA • Aug 26 v HUAWEI "S435 million. That's how much public US companies reported losing in the second quarter due to the ban." @Light_Reading discusses the impact of the decision to ban Huawei in the US. Here's What Trump's Huawei Ban Cost US Firms in Q... Several US companies put a dollar amount on the fssss "■aaaaai losses they incurred from President Trump's Huawei... ess: c$> Iightreading.com Q 2 U 3 O 10 £ HuaweiUSA fk @HuaweiUSA • Aug 26 Customer success is critical. Control Manager for Huawei Mayanmar, Ye Lin HUAWEI Aung, is dedicated to listening first and making sure client concerns are heard and understood. #WeAreHuawei Huawei: Achieve Your Potential ©* I'm Ye Lin Aung, a control manager for #Huawei in Myanmar. My employer believes in developing my youtube.com Q 1 n 2 0? 6 Received by NSD/FARA Registration Unit 08/28/2019 1:05:54 PM Received by NSD/FARA Registration Unit 08/28/2019 1:05:54 PM HuaweiUSAO @HuaweiUSA • Aug 26 v The talk around #5G is about trust. -
Chapter 1. Origins of Mac OS X
1 Chapter 1. Origins of Mac OS X "Most ideas come from previous ideas." Alan Curtis Kay The Mac OS X operating system represents a rather successful coming together of paradigms, ideologies, and technologies that have often resisted each other in the past. A good example is the cordial relationship that exists between the command-line and graphical interfaces in Mac OS X. The system is a result of the trials and tribulations of Apple and NeXT, as well as their user and developer communities. Mac OS X exemplifies how a capable system can result from the direct or indirect efforts of corporations, academic and research communities, the Open Source and Free Software movements, and, of course, individuals. Apple has been around since 1976, and many accounts of its history have been told. If the story of Apple as a company is fascinating, so is the technical history of Apple's operating systems. In this chapter,[1] we will trace the history of Mac OS X, discussing several technologies whose confluence eventually led to the modern-day Apple operating system. [1] This book's accompanying web site (www.osxbook.com) provides a more detailed technical history of all of Apple's operating systems. 1 2 2 1 1.1. Apple's Quest for the[2] Operating System [2] Whereas the word "the" is used here to designate prominence and desirability, it is an interesting coincidence that "THE" was the name of a multiprogramming system described by Edsger W. Dijkstra in a 1968 paper. It was March 1988. The Macintosh had been around for four years. -
Research Purpose Operating Systems – a Wide Survey
GESJ: Computer Science and Telecommunications 2010|No.3(26) ISSN 1512-1232 RESEARCH PURPOSE OPERATING SYSTEMS – A WIDE SURVEY Pinaki Chakraborty School of Computer and Systems Sciences, Jawaharlal Nehru University, New Delhi – 110067, India. E-mail: [email protected] Abstract Operating systems constitute a class of vital software. A plethora of operating systems, of different types and developed by different manufacturers over the years, are available now. This paper concentrates on research purpose operating systems because many of them have high technological significance and they have been vividly documented in the research literature. Thirty-four academic and research purpose operating systems have been briefly reviewed in this paper. It was observed that the microkernel based architecture is being used widely to design research purpose operating systems. It was also noticed that object oriented operating systems are emerging as a promising option. Hence, the paper concludes by suggesting a study of the scope of microkernel based object oriented operating systems. Keywords: Operating system, research purpose operating system, object oriented operating system, microkernel 1. Introduction An operating system is a software that manages all the resources of a computer, both hardware and software, and provides an environment in which a user can execute programs in a convenient and efficient manner [1]. However, the principles and concepts used in the operating systems were not standardized in a day. In fact, operating systems have been evolving through the years [2]. There were no operating systems in the early computers. In those systems, every program required full hardware specification to execute correctly and perform each trivial task, and its own drivers for peripheral devices like card readers and line printers. -
Technology Report
2021 TECHNOLOGY REPORT ISBANK Subs�d�ary 1 ©Copyright 2021, all rights reserved by Softtech Inc. No part or paragraph may be reproduced, published, represented, rented, copied, reproduced, be transmitted through signal, sound, and/or image transmission including wired/wireless broadcast or digital transmission, be stored for later use, be used, allowed to be used and distributed for commercial purposes, be used and distributed, in whole or in part or summary in any form. Quotations that exceed the normal size cannot be made. If it is desired to do so, Softtech A.Ş.’s written approval is required. In normal and legal quotations, citation in the form of “© Copyright 2021, all rights reserved by Softtech A.Ş.” is mandatory. The information and opinions of each author included in the report do not represent any institution and organization, especially Softtech and the institution they work with, they contain the opinions of the authors themselves. 2021 TECHNOLOGY REPORT ISBANK Subs�d�ary Colophon Preamble Jale İpekoğlu Umut Yalçın M. Murat Ertem Leyla Veliev Azimli Ussal Şahbaz Lucas Calleja Volkan Sözmen Mehmet Güneş Prof. Dr. Vasıf Hasırcı Authors Mehtap Özdemir Att. Yaşar K. Canpolat Ahmet Usta Mert Bağcılar Ali Can Işıtman Muhammet Özmen Editors Bahar Tekin Shirali Mustafa Dalcı Aylin Öztürk Berna Gedik Mustafa İçer Fatih Günaydın Burak Arık Mükremin Seçkin Yeniel Selçuk Sevindik Burak İnce Onur Koç Umut Esen Burcu Yapar Onur Yavuz Demet Zübeyiroğlu Ömer Erkmen Design Didem Altınbilek Assoc. Prof. Dr. Özge Can Emrah Yayıcı Qi Yin & Jlian Sun 12 Yapım Eren Hükümdar Rüken Aksakallı Temel Selçuk Sevindik Fatih Günaydın Salih Cemil Çetin GPT-3 Sara Holyavkin Contact Görkem Keskin Selçuk Sevindik Gül Çömez Prof. -
Microkernel Construction Introduction
Microkernel Construction Introduction Nils Asmussen 04/09/2020 1 / 32 Normal Organization Thursday, 4th DS, 2 SWS Slides: www.tudos.org ! Studies ! Lectures ! MKC Subscribe to our mailing list: www.tudos.org/mailman/listinfo/mkc2020 In winter term: Microkernel-based operating systems (MOS) Various labs 2 / 32 Organization due to COVID-19 Slides and video recordings of lectures will be published Questions can be asked on the mailing list Subscribe to the mailing list! Practical exercises are planed for the end of the semester Depending on how COVID-19 continues, exercises are in person or we use some video-conferencing tool 3 / 32 Goals 1 Provide deeper understanding of OS mechanisms 2 Look at the implementation details of microkernels 3 Make you become enthusiastic microkernel hackers 4 Propaganda for OS research done at TU Dresden and Barkhausen Institut 4 / 32 Outline Organization Monolithic vs. Microkernel Kernel design comparison Examples for microkernel-based systems Vision vs. Reality Challenges Overview About L4/NOVA 5 / 32 Monolithic Kernel System Design u s Application Application Application e r k Kernel e r File Network n e Systems Stacks l m Memory Process o Drivers Management Management d e Hardware 6 / 32 Monolithic Kernel OS (Propaganda) System components run in privileged mode No protection between system components Faulty driver can crash the whole system Malicious app could exploit bug in faulty driver More than 2=3 of today's OS code are drivers No need for good system design Direct access to data structures Undocumented -
IBPS CLERK CAPSULE for ALL COMPETITIVE EXAMS Exclusively Prepared for RACE Students Issue: 04 | Page : 102 | Topic : IBPS CAPSULE | Price: Not for Sale
IBPS CLERK CAPSULE for ALL COMPETITIVE EXAMS Exclusively prepared for RACE students Issue: 04 | Page : 102 | Topic : IBPS CAPSULE | Price: Not for Sale INDEX TOPIC Page No BANKING & FINANCIAL AWARENESS 2 LIST OF INDEXES BY VARIOUS ORGANISATIONS 11 GDP FORECAST OF INDIA BY VARIOUS ORGANISATION 15 LIST OF VARIOUS COMMITTEE & ITS HEAD 15 LOAN SANCTIONED BY NATIONAL AND INTERNATIONAL BANKS TO 17 INDIA PENALITY IMPOSED BY RBI TO VARIOUS BANKS IN INDIA 18 LIST OF ACQUISTION & MERGER 18 APPS/SCHEMES/FACILITY LAUNCHED BY VARIOUS 19 BANKS/ORGANISATIONS/COMPANY STATE NEWS 22 NATIONAL NEWS 38 IIT’S IN NEWS 46 NATIONAL SUMMITS 47 INTERNATIONAL SUMMITS 51 INTERNATIONAL NEWS 52 BUSINESS AND ECONOMY 60 LIST OF AGREEMENTS/MOU’S SIGNED 66 BRAND AMBASSADORS / APPOINTMENTS 68 AWARDS & HONOURS 70 BOOKS & AUTHORS 74 SPORTS NEWS 78 SCIENCE AND TECHNOLOGY 86 DEFENCE EXERCISES 93 IMPORTANT EVENTS OF THE DAY 94 OBITUARY 96 CABINET MINISTERS 2019 / LIST OF MINISTERS OF STATE 101 (INDEPENDENT CHARGE) CHIEF MINISTERS AND GOVERNORS 102 ________________________________________________________ 7601808080 / 9043303030 RACE Coaching Institute for Banking and Government Jobs www. RACEInstitute. in Courses Offered : BANK | SSC | RRB | TNPSC |KPSC 2 | IBPS CLERK CAPSULE | IBPS CLERK 2019 CAPSULE (JULY – NOVEMBER 2019) BANKING AND FINANCE Punjab & Sind Bank has set up a centralized hub named “Centralised MSME & Retail Group” (Cen MARG) for processing retail and Micro, Small and RBI gets the power to regulate housing finance companies instead Medium Enterprises (MSME) loans for better efficiency of branches in of NHB business acquisition. It is headquartered in New Delhi. Finance Minister Nirmala Sitharaman stated that India's central bank, Wilful defaults exceed $21 billion in India for the year 2018-19, Reserve Bank of India (RBI) will now be given power to takes over as the SBI holds the highest regulator of Housing Finance Firms(HFFs) instead of NHB(National Housing The state-owned banks in India stated that Rs. -
Europe's Capacity to Act in the Global Tech Race
German Council on Foreign Relations No. 6 April 2021 REPORT Europe’s Capacity to Act in the Global Tech Race Charting a Path for Europe in Times of Major Technological Disruption by Kaan Sahin and Tyson Barker Kaan Sahin was a Research Fellow at the DGAP until March 2021 and then moved to the Policy Planning Staff of the Federal Foreign Office Tyson Barker is Head of the Technology & Global Affairs Program 2 No. 6 | April 2021 Europe’s Capacity to Act in the Global Tech Race REPORT In the twenty-first century, technological innovation is Artificial intelligence: The EU has stepped up its driving geopolitical, economic and military competi- efforts to develop, deploy, and promote trust- tion. The US and China are leading the field. The risk of worthy AI. But there are three major hindrances an emerging global bipolar technology environment is preventing European competitiveness: Europe’s looming; one that could force third countries to come inability to commercialize its AI development; the down on the side of the US or China. Europe is lagging lack of venture capital investment for AI start- behind in the global tech race and faces an uphill bat- ups; and the tension between need for data sets to tle in its attempts to remain competitive. train AI models and the EU’s strong data protec- tion rules that make access to data sets difficult. The findings in this study show that Europe has quite The EU should further codify its values for inter- a way to go if it wants to become as competitive as national export. -
Mobile OS: Analysis of Customers’ Values
Mobile OS: analysis of customers’ values Georgii Shamugiia Bachelor's Thesis Business Administration 2020 Mobile OS 01.11.2020 Author(s) Georgii Shamugiia Degree programme Bachelor of Business Administration SAMPO18 Report/thesis title Number of pages Mobile OS: analysis of customer's values and appendix pages 14 + 47 The rapid development of the mobile industry since the start of new millennium led to much more extensive usage of mobile devices than desktop computers. Fast-developing technol- ogies of wireless networking led to the excessive need of a device, which can search any info on the web conveniently, be a decent communicational tool and be able to adapt to dif- ferent needs of customers. The device which fully fulfils this need is a smartphone, which is being widely used today by the majority of the global population. In this thesis, the author digests the tools, which allows smartphones to work appropriately, give consumers a pleasuring experience while using them and run all the operations and data stored on them. These tools are mobile op- erating systems – platforms, which allow all those things and even more. In this research, the author investigates the historical development of mobile operating systems, which put a mark in the history of the industry. By digesting three cases of Nokia, Blackberry and Mi- crosoft, the author explains what were the selling points, that succeeded and managed to popularise each mobile operating system globally among consumers and gadget manufac- turers and what were the reasons that caused their global downfall. A separate chapter of this research is dedicated to a survey regarding customer values and customer opinions about mobile devices and mobile operating systems. -
Linux on the OSF Mach3 Microkernel
Linux on top of the OSF Mach3 Microkernel Linux on top of the OSF Mach3 Microkernel Linux on top of OSF MK The Mach3.0 Microkernel: Design • microkernel abstractions François Barbou des Places ([email protected]) • task, thread, port, message, memory object Nick Stephen ([email protected]) • resources and services represented as ports OSF Research Institute - Grenoble • interfaces implemented via RPC to an object port Task Message • Objectives: • widen the audience for the free OSF micro-kernel Ports • provide a complete and free platform to develop new Threads servers, applications or kernel extensions • provide Apple with a freely redistributable microkernel-based operating system for the Memory Apple/PowerMac platform Object Freely Redistributable Software Conference - 5 Feb 1996 - Cambridge 1/17 Freely Redistributable Software Conference - 5 Feb 1996 - Cambridge 2/17 Linux on top of the OSF Mach3 Microkernel Linux on top of the OSF Mach3 Microkernel The Mach3.0 microkernel: Benefits OSF MK Improvements • portability (modular design) • performance • symmetric multi-processing support • kernel-loaded servers (collocation) • thread migration • scalability (from desktop PCs to high-end multi-computers) • short-circuited RPC • extensibility • real-time • OS-neutrality • preemptable kernel • support for OS personalities running as user tasks • real-time RPC, priority inheritance • pageable, preemptable • distributed system (clusters and multi-computers) • more portable: isolated from hardware • DIPC: transparent Distributed IPC • simpler: -
Scalability of Microkernel-Based Systems
Scalability of Microkernel-Based Systems Zur Erlangung des akademischen Grades eines DOKTORS DER INGENIERWISSENSCHAFTEN von der Fakultat¨ fur¨ Informatik der Universitat¨ Fridericiana zu Karlsruhe (TH) genehmigte DISSERTATION von Volkmar Uhlig aus Dresden Tag der mundlichen¨ Prufung:¨ 30.05.2005 Hauptreferent: Prof. Dr. rer. nat. Gerhard Goos Universitat¨ Fridericiana zu Karlsruhe (TH) Korreferent: Prof. Dr. sc. tech. (ETH) Gernot Heiser University of New South Wales, Sydney, Australia Karlsruhe: 15.06.2005 i Abstract Microkernel-based systems divide the operating system functionality into individ- ual and isolated components. The system components are subject to application- class protection and isolation. This structuring method has a number of benefits, such as fault isolation between system components, safe extensibility, co-existence of different policies, and isolation between mutually distrusting components. How- ever, such strict isolation limits the information flow between subsystems including information that is essential for performance and scalability in multiprocessor sys- tems. Semantically richer kernel abstractions scale at the cost of generality and mini- mality–two desired properties of a microkernel. I propose an architecture that al- lows for dynamic adjustment of scalability-relevant parameters in a general, flex- ible, and safe manner. I introduce isolation boundaries for microkernel resources and the system processors. The boundaries are controlled at user-level. Operating system components and applications can transform their semantic information into three basic parameters relevant for scalability: the involved processors (depending on their relation and interconnect), degree of concurrency, and groups of resources. I developed a set of mechanisms that allow a kernel to: 1. efficiently track processors on a per-resource basis with support for very large number of processors, 2.