...on Modern CPU Designs (and Vice Versa) Chris Schlaeger Director Operating System Research Center February, 2008 Software Visible Features changed the Game After the Megahertz Race What has changed? ▪ 64 bit computing ▪ AMD-V™ technology ▪ Power consumption ▪ Multi-core ▪ Frequency and cache size changes are invisible to the OS ▪ Architectural features require changes to the OS! 2 February, 2008 Impact of OSs on Modern CPU Designs Degrees of Freedom for CPU designs Address and instruction width Memory bus connection Instruction set Pipeline stages Number of execution units Number of cores Number of CPUs CPU Interconnects Caches ... 3 February, 2008 Impact of OSs on Modern CPU Designs AMD's HW/SW Co-Design Approach Next-Gen CPU/GPU HW-Architecture Architecture Improvements CPU Behavioural Description Binary Code Cycle Accurate Simulator Code Improvements Operating System Prototype Full In-House Design Cycle 4 OS Reference Implementation February, 2008 Impact of OSs on Modern CPU Designs Uniform vs. Non-Uniform Memory I/O I/O Hub Hub Memory Controller PCI-E Hub Bridge PCI-E Bridge PCI-E PCI-E Bridge Bridge PCI-E Bridge PCI-E Bridge I/O Hub USB PCI Traditional x86 architecture • Frontside bus limits memory bandwidth to a fixed maximum 5 Direct Connect Architecture • Memory bandwidth scales with number of processors February, 2008 Impact of OSs on Modern CPU Designs ...
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...U11C FILE COPy NAVAL POSTGRADUATE SCHOOL Monterey, California 6M to CD4 OTIC ELECTE SEP11W THESIS AUTOMATED FINANCIAL MANAGEMENT INFORMATION SYSTEM FOR NAVY FIELD ACTIVITY COMPTROLLERS by Shaun Kevin Taylor March 1990 Thesis Advisor: Second Reader: Glenn D. Eberling William J. Haga Approved for public release; distribution is unlimited. UNCLASSIFIED SECURITY CLASSIFICATION OF THIS PAGE REPORT DOCUMENTATION PAGE lb RESTRICTIVE MARKINGS Ia.REPORT SECURITY CLASSIFICATION Unclassif led 2a. SECURITY CLASSIFICATION AUTHORITY 3. DISTRIBUTION /AVAILABILITY OF REPORT 2b. DECLASSIFICATIONiDOWNGRADING Approved for public release; distribution is SCHEDULE unlimited. 5. MONITORING ORGANIZATION REPORT NUMBER(S) 4. PERFORMING ORGANIZATION REPORT NUMBER(S) 6a. NAME OF PERFORMING ORGANIZATION 6b. OFFICE SYMBOL 7a. NAME OF MONITORING ORGANIZATION (If applicable) I Code 37 Naval Postgraduate School Naval Postgraduate School 7b. ADDRESS (City, State, and ZIP Code) 6c. ADDRESS (City, State, and ZIPCode) Monterey, Ca. Monterey, Ca. 94943-5000 9. PROCUREMENT INSTRUMENT IDENTIFICATION NUMBER A 8b. OFFICE SYMBOL (If applicable) 8a. NAME OF FUNDING/SPONSORING ORGANIZATION 93943-5000 10. SOURCE OF FUNDING NUMBERS 8c. ADDRESS (City, State, and ZIP Code) PROGRAM ELEMENT NO. WORK UNIT ACCESSION NO. TASK NO. PROJECT NO. II. TITLE (Include Security Classification) ...
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...A NOVEL APPROACH TO IMPLEMENT DISK SECURITY USING PARTIAL DISK ENCRYPTION Anurag Sharma M L Smitha Tarun T Arya Minal Moharir Information Science and Engineering RV College of Engineering The main objective of the paper is to develop an efficient and cost effective method for Hard Disk Drive(HDD) Security. The task is implemented using Partial Disk Encryption (PDE) with Advanced Encryption Standards(AES) for data security of Personal Computers(PCS) and Laptops . The focus of this work is to authenticate and protect the content of HDD from illegal use. The proposed method is labeled as DiskTrust. FDE encrypts entire content or a single volume on your disk. Symmetric key uses same key for encryption as well for decryption. DiskTrust uses these two technology to build cost effective solution for small scale applications. Finally, the applicability of these methodologies for HDD security will be evaluated on a set of data files with different key sizes. KEYWORDS- INFORMATION SECURITY, INTEGRITY, CONFIDENTIALITY, AUTHENTICATION, ENCRYPTION. I. INTRODUCTION In today’s world information security is an important concern for every individual. People spend hundreds of dollars in protecting their data to stay in the competition, and any leakage of crucial data can result in unrecoverable loss. Information security is the most important form of security even before network security, as information stored securely can only be transmitted securely over a network, there by...
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...Computer From Wikipedia, the free encyclopedia Jump to: navigation, search For other uses, see Computer (disambiguation). "Computer technology" redirects here. For the company, see Computer Technology Limited. A computer is a programmable machine designed to sequentially and automatically carry out a sequence of arithmetic or logical operations. The particular sequence of operations can be changed readily, allowing the computer to solve more than one kind of problem. Conventionally a computer consists of some form of memory for data storage, at least one element that carries out arithmetic and logic operations, and a sequencing and control element that can change the order of operations based on the information that is stored. Peripheral devices allow information to be entered from external source, and allow the results of operations to be sent out. A computer's processing unit executes series of instructions that make it read, manipulate and then store data. Conditional instructions change the sequence of instructions as a function of the current state of the machine or its environment. The first electronic computers were developed in the mid-20th century (1940–1945). Originally, they were the size of a large room, consuming as much power as several hundred modern personal computers (PCs).[1] Modern computers based on integrated circuits are millions to billions of times more capable than the early machines, and occupy a fraction of the space.[2] Simple computers...
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...Design and Applied Research of the Distributed Real-time Database in Smart Grid Chunfeng Liu, Yan Jiang, Feng Zhao, Qiao Sun, Yang Zhang, Zhiqi Li, Chao Li Beijing Guodiantong Network Technology Company Ltd., No.1 Hangfeng Road, Fengtai District, Beijing, 100070, China {liuchunfeng, jiangyan, feng_zhao, sunqiao, zhangyang2, lizhiqi, lichao3}@sgepri.sgcc.com.cn database. Both timing constraints and data consistency should be taken into consider in real-time database systems when scheduling the transactions so that they can be accomplished by their corresponding deadlines[3]. For instance, both the query and update on the acquisition data of smart electricity meters, mainly working for the calculation of the multistep electricity price and electricity increment, must satisfy not only the database consistency constraints but also the time constrain, processed within the given deadlines. Apart from the time constraints that are out of the demand of continuously data tracking, timing correctness requirements are also proposed due to the need to keep data available for the decision-making activities of the controlling systems[4]. Based on these situations, real-time databases are used in a wide Keywords— Distributed, real-time database, smart grid, typical range of applications in the power industry. applications, electric energy data acquire system At the same time, the electricity data also has astounding I. INTRODUCTION quantities. In China, the scale of the data points in smart...
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...|PRESTIGE INSTITUTE OF MANAGEMENT AND RESEARCH | |Indore | | | |Project Report | | | |Payal Patidar | |BCA 6th Semester - 11641 | | | CONTENTS 1. Introduction a. Rationale b. Objectives c. Tools i. Software Requirements ii. Hardware Requirements 2. Methodology a. Design i. Algorithm ii. Flow chart iii. E-R Diagram iv. Data flow diagram 3. Tools i. Forms layout ii. Coding 4. Results 5. Conclusion 6. Reference INTRODUCTION ...
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...toward the identification of a future dissertation topic within this field and also towards the identification of research material in support of the final dissertation. The annotated bibliographic reviews contained within this paper will work to provide information that will support my future research and provide experience in garnering and explaining the salient tenants of research material. NOTE: This paper will not include proper APA formatting as citations have been bolded to ensure the professor can discern where citations begin and end. Curtis, S. K. (2012). Commitment to cybersecurity and information technology governance: A case study and leadership model. (Doctoral dissertation). Retrieved from the ProQuest dissertation and thesis database. (UMI No. 3569139) The problem as described by the author in this quantitative study is senior managers are not using web analytic technology (WAT) and there is a lack of literature describing why this is the case. The purpose of this study is to “examine how management consultants perceive WAT” (p. 22). This study has seven hypotheses. Unified theory of acceptance use of technology (UTAUT) is the conceptual framework utilized by the author. The author utilized UTAUT with independent variables of social norm, performance expectancy and effort expectancy, facilitating condition and management consultants’ behavioral intention to accept WAT and the moderators of gender, age and experience to capture behaviors related to the intention...
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...Running Head: JINX TRANSPORT AND LOGISTICS COMPANY OPERATING SYSTEM UPGRADE EMERGING TECHNOLOGIES AND ARCHITECTURE PROJECT NAME: OPERATING SYSTEMS DESIGN STUDENT NAME: COURSE NUMBER: COURSE NAME: MODERN OPERATING SYSTEMS PROFESSOR: SCHOOL: DATE: MARCH 25th, 2013 Table of Contents Company Background 4 Employee Access 4 Data center description (servers, OS) 4 Client machines 4 Company Communication 5 Problems with the Current Information Systems 5 Proposed System 6 OS Processor and Core 8 Hardware 8 Benefits from Upgrading to Operating System Utilizing a Multi-Processor 9 Steps to Upgrade the Processor and Core 9 Requirements Supporting the Upgrade 10 Conclusion 10 Scheduling Algorithm 11 In First-Come First-Served Scheduling 11 Benefits and Challenges Presented by FCFS 12 Round robin scheduling 12 Benefits and Challenges Presented by Round Robin Scheduling 13 Conclusion 14 Distributed Computing Environment 15 Operating System Concurrency Mechanism 15 Grid Computing 16 Concurrency control mechanisms in handling communications and synchronization 17 OS Security Risks and Mitigation Strategy 18 The main areas of the operating system that are evaluated for performing the risk assessment are: 20 Prioritization risks in the operating system: 21 Risk mitigations for the risks in the operating systems: 24 Emerging Technologies and Architecture 26 Cloud Computing 26 Remote Procedure Call (RPC) 27 Object...
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...THESIS PROPOSAL INFORMATION MANAGEMENT SYSTEM (IMS) BY 2012 SUBMITTED TO ______________________ INTRODUCTION: The purpose of this essay is to address several aspects in order to understand the importance of information management systems operation, improve the quality of business service that based on information technology, and enhance the level of management of information systems. Information management System (IMS) effectiveness assessment is an important issue for the organizations as IMS have become critical for their survival. With the incorporation of Internet technologies into the business environment, it is now more difficult to measure IMS effectiveness, because Internet provides a borderless, flexible and non-stop communication medium. Assessing the effectiveness of information systems (IS) is vital for survival and competitive advantage which is a complicated subject since there are several interacting factors to consider. In the literature there are several methods...
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...1.1 INTRODUCTION The combination of visual and auditory information at the human-computer interface is a natural step forward. In everyday life both senses combine to give complementary information about the world; they are interdependent. The visual system gives us detailed data about a small area of focus whereas the auditory system provides general data from all around, alerting us to things outside our peripheral vision. The combination of these two senses gives much of the information we need about our everyday environment. Dannenberg & Blattner ([23], pp xviii-xix) discuss some of the advantages of using this approach in multimedia/multimodal computer systems: "In our interaction with the world around us, we use many senses. Through each sense we interpret the external world using representations and organisations to accommodate that use. The senses enhance each other in various ways, adding synergies or further informational dimensions". They go on to say: "People communicate more effectively through multiple channels. ... Music and other sound in film or drama can be used to communicate aspects of the plot or situation that are not verbalised by the actors. Ancient drama used a chorus and musicians to put the action into its proper setting without interfering with the plot. Similarly, non-speech audio messages can communicate to the computer user without interfering with an application". These advantages can be brought to the multimodal human-computer interface...
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...NETWORK-ATTACHED STORAGE FOR SMALL COMPANIES Case: Design Foundation Finland LAHTI UNIVERSITY OF APPLIED SCIENCES Degree Programme in Business Information Technology Bachelor Thesis Autumn 2012 Jari-Pekka Koivisto Lahti University of Applied Sciences Degree Programme in Business Information Technology KOIVISTO, JARI-PEKKA: Network-attached storage for small companies Case: Design Foundation Finland Thesis in Degree Programme in Business Information Technology, 56 pages, 11 pages of appendices Autumn 2012 ABSTRACT This study focuses on finding the proper solution to create Network-attached storage (NAS) for a small company. This study was commissioned by Design Foundation Finland, aiming to improve the security and the management of the information. This research will be aiming to find the proper way to design and implement a network storage, which will be used as the main data storage within the company for creating an ideal solution for data maintenance, security and ease of access to all the data of the foundation. The outcome of the thesis is a solution, which is created from scratch, offering a design and implementation of an NAS in a small company with a relatively small budget. The case foundation is located in Lahti. The foundation was established in 2009, aimed to improve and support the education (of design), as well as research and development of design. Design Foundation Finland also has an own R&D group to improve the design of Finnish products in several...
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...Chapter 1 Introduction of the Study: Statement of the Study: After conducting a study and interview to some faculty members of West Visayas State University – Pototan Campus. Its outcome showed that there are some difficulties. General Problem: The study aim to develop a system in the Automated Scheduler and Online Schedule of ICT Faculty. Specifically it aims to answer the following question. 1. What is the current system used in making teachers schedules? 2. Is the developed system beneficial to the scheduler itself in eliminating conflicts in terms of the time and room utilization! Background of the Study The rapid changes in the world today are the outcomes of mans knowledge of computer. Global competitiveness, cyber space technologies and information highway, which are the means of productivity and improvement in today’s modern age, are enhanced by computers. The world demands knowledge about computers more than even before and the world of tomorrow will demand even more. Computers occupy an integral and vital position in the world. It is one of the powerful tools that show demand in every man’s benefits from the emerging technology. The West Visayas State University – Pototan Campus is one the many institution that recognizes the usefulness of this technology having been in existence. The college manually operates the storage and inquiry of employee data. The personnel-in-charge of this section has to work hard consume long period of time in browsing...
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...Masaryk University Faculty of Informatics The Shift Towards Cloud Computing Master Thesis Brno, May 2009 Stanislav Tvarůžek 1 Declaration I declare that this master thesis is solely my own work. I have cited all sources used in this thesis and I have provided complete references to them. Supervisor: RNDr. Radek Ošlejšek, Ph.D. 2 Abstract Cloud computing is a phenomenon of the recent years and academia as well as major IT players are paying more attention to this emerging and innovative approach. This thesis summarizes information from various sources gathered on the subject 'cloud computing'. Firstly, it tracks back the evolution of technologies that paved the road for cloud computing and accelerated its further advancements. Secondly, it provides a high level overview of cloud computing technology stack and identifies service layers exposed via on-demand infrastructure. Lastly, it investigates various aspects of cloud computing and its impact on information technology. Any comments and thoughts on this thesis are highly appreciated and you can drop me a line at: tvaruzek@mail.muni.cz Keywords: Cloud computing, Virtualization, Innova.sk, Infrastructure as a Service, Platform as a Service, Amazon Web Services, Google Apps 3 Acknowledgments I would like to thank my supervisor Radek Ošlejšek for providing me the necessary help and guidance. I would like to express many thanks to my friends who helped me and supported me, especially...
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...IBM POWER6 Microprocessor (64 bit) Term Paper: ECE312 Rahul Sihag Section: K2103, Roll no: B26 B Tech CSE Lovely Professional University Phagwara, Punjab, India rahulsihagg@gmail.com Abstract— This term paper is about IBM POWER6 Microprocessors. It covers Introduction, Core chapters including definition, description, history, design etc. It also includes their Applications, Future perspective and Conclusion etc. Index Terms— Introduction, Core chapters, Applications & Future perspective, Conclusion. I. INTRODUCTION A. Microprocessors A silicon chip that contains a CPU. In the world of personal computers, the terms microprocessor and CPU are used interchangeably. At the heart of all personal computers and most workstations sits a microprocessor. Microprocessors also control the logic of almost all digital devices, from clock radios to fuel-injection systems for automobiles. It is a multipurpose, programmable device that accepts digital data as input, processes it according to instructions stored in its memory, and provides results as output. Intel introduced its first 4-bit microprocessor 4004 in 1971 and its 8-bit microprocessor 8008 in 1972. B. IBM POWER6 Microprocessors The POWER6 is a microprocessor developed by IBM that implemented the Power ISA v.2.03. When it became available in systems in 2007, it succeeded the POWER5+ as IBM's flagship Power microprocessor. The POWER6 processor is the latest generation in the POWER line of PowerPC processors...
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...SCHOOL OF GRADUATE STUDIES CENTRAL PHILIPPINE UNIVERSITY LOPEZ JAENA STREET JARO, ILOILO CITY ____________________________________________________________________________ REACTION PAPER Asian Economics Comment Presented to: Prof, Jima G.DeLeon, MBA Professor, School of Graduate Studies Central Philippine University In Partial Fulfilment of the Course Requirement in MBA 612 Financial Systems Presented by: Mehrdad Alavi MBA Thesis Option September 13, 2013 I. PRELINMINARY 1- The title of paper is Asian Economics Comment, The anatomy of bubbles, part 1. It is written at August 27 2009 by Dr, Feredric Neumman, whom is senior Asian Economist. The issuer of report is The Hongkong and Shunghai Banking Corporation Limited. Additional information for connecting to the author is +85228224556. FEREDERICINEUMANN@HSBC.COM.HK For more information, the reader can view HSBC Global Research at: www.research.hsbc.com 2- It talks about The Bubble in the financial market specifically in the financial housing market in the Asia and what was happening in the USA at 2008 in the same field. II. ANALYSIS AND REACTION 1- The author tried to anatomy of a bubble in the asset market which was happening at 2008 and before. The first part is discussed about what conditions required for that and the part two and three are belong to what is need to sustain the run. He had paid particularly attention to psychology and what behavioural insights...
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