REAL TIME MULTICOMPUTER SOFTWARE SYSTEMS

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Real Time Microprocessor Systems

Author : Stephen R. Savitzky
ISBN : UOM:39015009788764
Genre : Microprocesseurs, Systèmes à
File Size : 30.9 MB
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Computer Systems Organization -- Special Purpose and Application-Based Systems.
Category: Microprocesseurs, Systèmes à

High Integrity System Specification And Design

Author : Jonathan P. Bowen
ISBN : 9781447134312
Genre : Computers
File Size : 28.95 MB
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Errata, detected in Taylor's Logarithms. London: 4to, 1792. [sic] 14.18.3 6 Kk Co-sine of 3398 3298 - Nautical Almanac (1832) In the list of ERRATA detected in Taylor's Logarithms, for cos. 4° 18'3", read cos. 14° 18'2". - Nautical Almanac (1833) ERRATUM ofthe ERRATUM ofthe ERRATA of TAYLOR'S Logarithms. For cos. 4° 18'3", read cos. 14° 18' 3". - Nautical Almanac (1836) In the 1820s, an Englishman named Charles Babbage designed and partly built a calculating machine originally intended for use in deriving and printing logarithmic and other tables used in the shipping industry. At that time, such tables were often inaccurate, copied carelessly, and had been instrumental in causing a number of maritime disasters. Babbage's machine, called a 'Difference Engine' because it performed its cal culations using the principle of partial differences, was intended to substantially reduce the number of errors made by humans calculating the tables. Babbage had also designed (but never built) a forerunner of the modern printer, which would also reduce the number of errors admitted during the transcription of the results. Nowadays, a system implemented to perform the function of Babbage's engine would be classed as safety-critical. That is, the failure of the system to produce correct results could result in the loss of human life, mass destruction of property (in the form of ships and cargo) as well as financial losses and loss of competitive advantage for the shipping firm.
Category: Computers

Stochastic Models In Engineering Technology And Management Proceedings Of The Australia Japan Workshop

Author : Osaki Shunji
ISBN : 9789814552875
Genre :
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Chinese Remainder Theorem, CRT, is one of the jewels of mathematics. It is a perfect combination of beauty and utility or, in the words of Horace, omne tulit punctum qui miscuit utile dulci. Known already for ages, CRT continues to present itself in new contexts and open vistas for new types of applications. So far, its usefulness has been obvious within the realm of “three C's”. Computing was its original field of application, and continues to be important as regards various aspects of algorithmics and modular computations. Theory of codes and cryptography are two more recent fields of application.This book tells about CRT, its background and philosophy, history, generalizations and, most importantly, its applications. The book is self-contained. This means that no factual knowledge is assumed on the part of the reader. We even provide brief tutorials on relevant subjects, algebra and information theory. However, some mathematical maturity is surely a prerequisite, as our presentation is at an advanced undergraduate or beginning graduate level. We have tried to make the exposition innovative, many of the individual results being new. We will return to this matter, as well as to the interdependence of the various parts of the book, at the end of the Introduction.A special course about CRT can be based on the book. The individual chapters are largely independent and, consequently, the book can be used as supplementary material for courses in algorithmics, coding theory, cryptography or theory of computing. Of course, the book is also a reference for matters dealing with CRT.
Category:

System Software And Software Systems

Author : Teodor Rus
ISBN : 9789814504645
Genre : Computers
File Size : 60.30 MB
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SYSTEM SOFTWARE AND SOFTWARE SYSTEMS: Concepts and Methodology is intended to offer a systematic treatment of the theory and practice of designing and implementing system software. The two volumes systematically develop and apply the systems methodology for software development. For that the concept of a system is analysed and various types of systems used in computer science are systematized into a concept of an ad hoc system that is suitable as a mechanism for software development. The kernel of this methodology consists of a systematic approach for ad hoc systems development (specification, implementation, validation). The hardware and the software of a computer system are specified as ad hoc systems. Examples from various architectures, languages, and operating systems are provided as illustrations. Problems and their suggested solutions are provided at the end of each chapter. Further readings and a list of references conclude each chapter. These volumes are self-contained and may be used as textbooks for an introductory course on system software and for a course on operating system. However, a broad spectrum of professionals in computer science will benefit from it. For information on Volume 2, please see here. Contents:System Methodology for Software Development:Systems MethodologyAlgebraic MethodologyInformal SystemsFormal SystemsFormal System ConstructionAlgebraic SystemsAd Hoc SystemsAd Hoc System Formalization (Transition Systems, Action Language)Ad Hoc System Construction (System Specification, System Implementation, System Validation)Doctrines of an Ad Hoc SystemExample of Ad Hoc System ConstructionComputing SystemsSoftware SystemsOverviewHardware System:Major Behavior of the Hardware SystemHardware System Components (Memory, Processor, Input-Output, Control)Performing Program Execution in ParallelData Type View of I/O ComponentsEfficiency of a Hardware SystemConvenience of a Hardware SystemGeneral View of the Hardware SystemProcess and Resource Representation:Process Data RepresentationContext of a ProcessorMemory Data RepresentationThe I/O Device Data RepresentationService Tools Provided by SoftwareInterrupt System:Interrupt SystemActual ImplementationsExamples of Interrupt SystemsOperating System — An Overview:The First Operating SystemDesign of a Control Program, Job Data StructureBatch Operating SystemReliability (Problem of Protection, Timing Program Execution)Efficiency) Performance Measurements, Parallel Actions Performed by Hardware, Overlapping Program Execution with its I/O Operations, Interleaving Program Execution)Off-Line OperationSpooling OperationMultiprogrammingA Model of Multiprogramming SystemMultiprocessor Systems Readership: Professionals in computer science. keywords:
Category: Computers

Point Process Models With Applications To Safety And Reliability

Author : W. Thompson
ISBN : 9781461310679
Genre : Juvenile Nonfiction
File Size : 64.92 MB
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In teaching an elementary course in stochastic processes it was noticed that many seemingly deep results in point processes are readily accessible by the device of representing them in terms of random gap lengths between points. The possibility of representing point processes in terms of sequences of random variables rather than probability measures makes them mathemati cally simpler than general stochastic processes. Point processes can be studied using only the tools of elementary probability, that is the joint distributions of finitely many random variables. Given the wide applicability of point process models and the difficulty of access by the measure-theoretic route, it was determined that the simpler representation is of sufficient expository im portance to deserve emphasis. The present book is the result: it is specialized and short and therefore is called a monograph. In its development the material has been taught to several classes with pleasing results. Students have apparently understood theorems which by other methods appear difficult and deep. A few of the results, particularly on reliability, safety assessment and clustering, are original applied research. An alternative title for this monograph might be 'Point processes: What they are and what they are good for.
Category: Juvenile Nonfiction

Wege Zu Sehr Fortgeschrittenen Handhabungssystemen Methods Of Very Advanced Industrial Robots

Author : H. Steusloff
ISBN : 9783642814440
Genre : Technology & Engineering
File Size : 56.50 MB
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Industrieroboter (IR) werden durch sechs Teilsysteme gebildet: Aufbau (Kinematik), Antriebe, Steuerung, Regelung, Bedienung und last not least Sensoren. Hier sollen die ersten drei Teilsysteme behandelt werden, die restlichen drei folgen in den anschließenden Abschnitten. Zur Auswahl des für die Projektziele [1] als Erprobungsträger einge setzten Roboters, der die Untersuchung verschiedener Lösungsansätze und die Demonstration ihrer Leistungsfähigkeit gestatten soll, wurden folgende Auswahlbedingungen bezüglich des Marktangebotes gestellt: Der IR muß konstruktiv dem heutigen Erkenntnisstand beim Aufbau von IR-Kinematiken entsprechen und sollte ein Seriengerät sein. Der IR muß in seinen Eigenschaften zur Demonstration der Projekt ziele geeignet sein. Im folgenden werden der Aufbau und die Auslegung des IR, Gesichts punkte zur Auswahl der Antriebstechnik, ihre Auslegung sowie die zur Steuerung und zur Sicherung gegen Ausfall behandelt. 2. Aufbautechnik Die Projektziele verlangen einen IR mit einer Tragkraft von ca. 200 N bis 500 N bei einer hohen Verfahrgeschwindigkeit der einzelnen Frei heitsgrade zum Erreichen einer Bahngeschwindigkeit von etwa 2 rn/sec. Die Zahl der Freiheitsgrade - auch "Achsen" genannt - sollte 6 nicht unterschreiten, um komplexe Bewegungsabläufe, ggf. auch das Umgreifen von Hindernissen untersuchen zu können. Der eingesetzte IR vom Typ VW-R30 erfüllt die genannten Anforderungen.
Category: Technology & Engineering

Timing Analysis Of Real Time Software

Author : M.G. Rodd
ISBN : 9780080983967
Genre : Computers
File Size : 60.79 MB
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The authors set out to address fundamental design issues facing engineers when developing the software for real-time computer-based control systems – in which all programs must be safe, reliable, predictable and able to cope with the occurence of faults. Despite rapid progress in computer technology, the attention of designers is still focused on finding logically correct algorithms to implement the required control. It has, however, become evident that this is insufficient and that attention must be paid to meeting the complex timing interactions which occur between the systems under control and the computers controlling them. This book suggests that the answers lie in the use of understandable, engineering-relevant, mathematically sound tools for expressing and analysing the complex temporal interactions. Timing Analysis of Real-Time Software is not a designer's handbook; rather it discusses the nature of the problems involved and how they can be handled. The focus is on the use of modelling techniques based on the so-called Quirk-model, initially developed in the United Kingdom and, over the past decade, extensively developed in institutions in the ex-Soviet Union and Europe. This book shows how the techniques can be used to form the basis of a new generation of CASE (computer assisted software engineering) tools, and examples are given of how these can be used to design embedded systems ranging from digital controllers through to communication protocol handlers.
Category: Computers

Methods And Tools Of Parallel Programming Multicomputers

Author : Ching-Hsien Hsu
ISBN : 9783642148217
Genre : Computers
File Size : 54.59 MB
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This book constitutes the thoroughly refereed post-conference proceedings of the Second Russia-Taiwan Symposium on Methods and Tools of Parallel Programming, MTPP 2010, held in Vladivostok, Russia in May 2010. The 33 revised full papers were carefully selected from a large number of submissions and cover the many dimensions of methods and tools of parallel programming, algorithms and architectures, encompassing fundamental theoretical approaches, practical experimental approaches as well as commercial components and systems.
Category: Computers