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Capability Based Computer Systems

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Author by : Henry M. Levy
Languange Used : en
Release Date : 2014-05-16
Publisher by : Digital Press

ISBN : 9781483101064

Capability-Based Computer Systems focuses on computer programs and their capabilities. The text first elaborates capability- and object-based system concepts, including capability-based systems, object-based approach, and summary. The book then describes early descriptor architectures and explains the Burroughs B5000, Rice University Computer, and Basic Language Machine. The text also focuses on early capability architectures. Dennis and Van Horn's Supervisor; CAL-TSS System; MIT PDP-1 Timesharing System; and Chicago Magic Number Machine are discussed. The book then describes Plessey System 250, Cambridge CAP Computer, and Hydra System. The selection also discusses STAROS System and IBM System/38. STAROS object support and abstract type management, as well as IBM System/38 profiles and authority and programs/procedures, are described. The book highlights Intel iAPX 432, and then considers segment and objects, program execution, storage resources, and abstraction support. Problems related with capability-based architectures are also noted. The text is a good source for readers wanting to study computer programming....

Computer Systems

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Author by : Andrew James Herbert
Languange Used : en
Release Date : 2006-05-07
Publisher by : Springer Science & Business Media

ISBN : 9780387218212

An invited collection of peer-reviewed papers surveying key areas of Roger Needham's distinguished research career at Cambridge University and Microsoft Research. From operating systems to distributed computing, many of the world's leading researchers provide insight into the latest concepts and theoretical insights--many of which are based upon Needham's pioneering research work. A critical collection of edited-survey research papers spanning the entire range of Roger Needham's distinguished scientific career, from operating systems to distributed computing and security. Many of the world's leading researchers survey their topics' latest developments and acknowledge the theoretical foundations of Needham's work. Introduction to book written by Rick Rashid, Director of Microsoft Research Worldwide....

Capability Based Protection In A Persistent Global Virtual Memory System

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Author by : Jerry Vochteloo
Languange Used : en
Release Date : 1993
Publisher by :

ISBN : OCLC:31700658

Abstract: "A single address-space encompassing all virtual memory of a distributed computer system is an ideal environment for a persistent system. The issue of providing effective and efficient protection of objects in such an environment has, however, not been addressed satisfactorily. We propose a system which is based on password capabilities. A system-maintained data structure called the capability tree is used for long-term storage of capabilities, and reflects the hierarchical structure of object privacy. A second system data structure, the active protection domain, allows the system to find capabilities quickly when validating memory accesses. The proposal supports inheritance of protection domains, as well as temporary extension of protection domains to support privileged procedures. Untrusted programs can be confined to run in a restricted protection domain. The protection system performs efficiently on conventional architectures, and is simple enough that most programs do not need to be aware of its operation."...

The Design Of A Flexible Operating System For A Capability Based Computer

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Author by : John Vernon Thomson
Languange Used : en
Release Date : 1984
Publisher by :

ISBN : OCLC:225704804

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Time Sharing Computer Systems

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Author by : Maurice Vincent Wilkes
Languange Used : en
Release Date : 1972
Publisher by : London : Macdonald and Company ; New York : American Elsevier

ISBN : UOM:39015002098096

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Logical Access Control Mechanisms In Computer Systems

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Author by : David K. Hsiao
Languange Used : en
Release Date : 1973
Publisher by :

ISBN : OCLC:227542644

The paper reviews the logical access control mechanisms implemented in two computer systems. The first computer system, known as the PSF, is an on-line, multi-access operating system with an advanced data base management capability on an IBM 7040/PDP/ 8/DEC 338 coupled computer configuration. The second computer system, known as the EDMF, is a time-sharing operating system with extended data base management capability on a RCA SPECTRA 70/46 virtual memory computer....

Capability Management In Digital Enterprises

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Author by : Kurt Sandkuhl
Languange Used : en
Release Date : 2018-07-28
Publisher by : Springer

ISBN : 9783319904245

Putting capability management into practice requires both a solid theoretical foundation and realistic approaches. This book introduces a development methodology that integrates business and information system development and run-time adjustment based on the concept of capability by presenting the main findings of the CaaS project – the Capability-Driven Development (CDD) methodology, the architecture and components of the CDD environment, examples of real-world applications of CDD, and aspects of CDD usage for creating business value and new opportunities. Capability thinking characterizes an organizational mindset, putting capabilities at the center of the business model and information systems development. It is expected to help organizations and in particular digital enterprises to increase flexibility and agility in adapting to changes in their economic and regulatory environments. Capability management denotes the principles of how capability thinking should be implemented in an organization and the organizational means. This book is intended for anyone who wants to explore the opportunities for developing and managing context-dependent business capabilities and the supporting business services. It does not require a detailed understanding of specific development methods and tools, although some background knowledge and experience in information system development is advisable. The individual chapters have been written by leading researchers in the field of information systems development, enterprise modeling and capability management, as well as practitioners and industrial experts from these fields....

Naming And Protection In Extendible Operating Systems

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Author by : David D. Redell
Languange Used : en
Release Date : 1974
Publisher by :

ISBN : UCAL:C3481370

The properties of capability-based extendible operating systems are described, and various aspects of such systems are discussed, with emphasis on the conflict between free distribution of access privileges and later revocation of those privileges. The discussion culminates in a set of goals for a new scheme. A new design is then proposed, which provides both type extension and revocation through the definition of generalized sealing of capabilities. The implementation of this design is discussed in sufficient detail to demonstrate that it would be workable and acceptably economical. The utility of the proposed capability mechanism is demonstrated by describing two facilities implementable in terms of it. These are: (a) revocable parameters for calls between mutually suspicious subsystems, and (b) directories providing a civilized dedium for the storage and distribution of revocable capabilities....

Architecting Secure Software Systems

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Author by : Asoke K. Talukder
Languange Used : en
Release Date : 2008-12-17
Publisher by : CRC Press

ISBN : 9781420087857

Traditionally, software engineers have defined security as a non-functional requirement. As such, all too often it is only considered as an afterthought, making software applications and services vulnerable to attacks. With the phenomenal growth in cybercrime, it has become imperative that security be an integral part of software engineering so tha...

Extending A Capability Based System Into A Network Environment

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Author by : Carnegie-Mellon University. Computer Science Department
Languange Used : en
Release Date : 1987
Publisher by :

ISBN : OCLC:123324645

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