...Homework 5 CNT 4007 Spring 2016 1. A LAN has a data rate of 4 Mbps and a propagation delay between two stations at opposite ends of 20 µs. For what range of PDU sizes does stop-and-wait give an efficiency of at least 50%? 2. A disadvantage of the contention approach for LANs is the capacity wasted due to multiple stations attempting to access the channel at the same time. Suppose that time is divided into discrete slots, with each stations attempting to transmit with probability p during each slot. What fraction of slots are wasted due to multiple simultaneous transmission attempts? 3. A simple medium access control protocol would be to use a fixed assignment time division multiplexing (TDM) scheme. Each station is assigned one time slot per cycle for transmission. For the bus, the length of each slot is the time to transmit 100 bits plus the ene-to-end propagation delay. For the ring, assume a delay of 1 bit time per station, and assume that a round-robin assignment is used. Stations monitor all time slots for reception. Assume a propagation time of 2×108 m/s. For N stations, what is the throughput per station for a. A 1-Km, 10 Mbps baseband bus b. A 10-Mbps ring with a total length of 1Km 4. Consider two stations on a baseband bus at a distance of 1Km from each other. Let the data rate be 1 Mbps, the frame length be 100 bits, and the propagation velocity be 2 ×108 m/s. Assume that each station generates frames at an average rate of 104 frames per second...
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...Management Information Systems Program | MIS 545: Computer Organization and Architecture | Paper Systems Project My technology project will describe my personal computer systems that I currently use to complete projects for a variety of business acumens. Since the early1990’s I have provided various business services to small business and individuals including but not limited to financial and tax advice and preparation, data gathering and analysis and reporting, documentation services and notary services. I have twenty plus years of experience in Financial Services and Business Analysis focusing on Asset Management domain with strong skills in facilitating discussions regarding documenting methods and business procedures involving key stakeholders from both business side and IT sides to elicit high level requirements and estimate project feasibility, with these types of projects, usually for major banks I require a system that a) works, b) is secure and c) is compatible with client software and programs. That has perhaps been my most challenging feat in keeping up with technology. The basic hardware and software components Because I am one person, occasionally hiring out portions of larger projects, my equipment has been somewhat limited to that available to retail consumers. This business currently has four laptops, (only 3 being utilized) and three printer, scanner fax combination machines. I also have an external hard drive to which I can connect from anywhere...
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...INSTRUCTION SET The instruction set, also called instruction set architecture (ISA), is a part of the computer that pertains to programming, which is basically machine language. The collection of different instructions that the CPU can execute is referred to as the CPU’s instruction set. A machine instruction should contain the following elements: * Operation code: Specifies the operation to be performed. * Source operand reference: The reference to the operand should be there in the instruction. * Result operand reference: The address of the memory where output should be stored must be mentioned. * Next instruction reference: This tells CPU where to find the next instruction to be executed. All the machine instructions can be categorized in to the following types: * Data processing: This classification contains arithmetic instructions which provide computational capabilities for processing numeric data and logical instructions which operate on the bits of a word as bits. * Data storage: This classification contains instruction to store data in memory and the registers. * Data movement: This classification contains instructions to move data between memory and the registers. These instructions are also known as I/O instructions. * Control: This classification contains test instructions that are used to test the value of a data word or the status of a computation and branch instructions that are used to branch to a different set of instructions...
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...OUTLINE Computer Organization _______________________________________________________________ Objectives: To introduce the following subjects: ▪ Organization of digital computers ▪ Different components ▪ Basic principles and operations. Textbook: Stallings W., Computer Organization and Architecture: Designing for Performance, (9-th Edition) Prentice Hall, 2012. References: ▪ Stallings W., Computer Organization and Architecture: Designing for Performance, (6-th Edition) Prentice Hall, 2003 ▪ Stallings W., Computer Organization and Architecture: Designing for Performance, (5-th Edition) Prentice Hall, 2000. ▪ Mano M. M., Computer System Architec-ture (3-rd Edition), Prentice Hall, 1993. ▪ Stallings W., Computer Organization and Architecture: Principles of Structure and Function, 3-rd Edition) Macmillan Publishing Company, 1993. ▪ Wear L.L., Computer: An Introduction to Hardware and Software Design, McGraw Hill International Edition, 1991. Subject Contents in Outline: ▪ Data Representation and Manipulation ▪ Digital Component ▪ Register Transfer and Microoperations ▪ Basic Computer Organization ▪ Overview of programming ▪ Central Processing Unit ▪ Input/Output Organization ▪ Memory Organization ▪ New development Suggested Reading Assignments: Stallings William, Computer Organization...
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...COMPUTER ORGANIZATION AND ARCHITECTURE DESIGNING FOR PERFORMANCE EIGHTH EDITION William Stallings Prentice Hall Upper Saddle River, NJ 07458 Library of Congress Cataloging-in-Publication Data On File Vice President and Editorial Director: Marcia J. Horton Editor-in-Chief: Michael Hirsch Executive Editor: Tracy Dunkelberger Associate Editor: Melinda Haggerty Marketing Manager: Erin Davis Senior Managing Editor: Scott Disanno Production Editor: Rose Kernan Operations Specialist: Lisa McDowell Art Director: Kenny Beck Cover Design: Kristine Carney Director, Image Resource Center: Melinda Patelli Manager, Rights and Permissions: Zina Arabia Manager, Visual Research: Beth Brenzel Manager, Cover Visual Research & Permissions: Karen Sanatar Composition: Rakesh Poddar, Aptara®, Inc. Cover Image: Picturegarden /Image Bank /Getty Images, Inc. Copyright © 2010, 2006 by Pearson Education, Inc., Upper Saddle River, New Jersey, 07458. Pearson Prentice Hall. All rights reserved. Printed in the United States of America. This publication is protected by Copyright and permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s), write to: Rights and Permissions Department. Pearson Prentice Hall™ is a trademark of Pearson Education, Inc. Pearson® is a registered trademark of...
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...SECURING DATA AND SOFTWARE MORE THAN COMPUTER HARDWARE IN AN ORGANIZATION BY DHUMISAN CHISI SUBMITTED TO MR MWEKHELA IN PARTIAL FULFILLMENT FOR THE COURSE FUNDAMENTALS OF INFORMATION SYSTEMS COURSE CODE CCC1073 THE MALAWI ASSEMBLIES OF GOD UNIVERSITY 23TH MARCH 2015 Information systems have long been at some risk from malicious actions or unplanned user errors and from natural and man-made disasters. In recent years, systems have become more at risk to these threats because computers have become more organized and, thus, more interdependent and accessible to a larger number of individuals. In addition, the number of individuals with computer skills is increasing, and intrusion, or “hacking,” techniques are becoming more widely known via the Internet and other media. In large organizations computers are kept in large scales and also store a lot of important data and information plus maybe softwares of the at most important. These softwares and information require to be kept safe and protected. It is the sole purpose of this paper to explain the reasons why it is important to secure the organizations data/information and computer softwares of an organization. Some of the information used in business organization requires special protection for confidentiality (to ensure that only those who need access to that information to do their jobs actually have access to it). Some of the information used in business organizations need protection for integrity (to...
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...OF THE STUDY 1.0 INTRODUCTION The invention of computers has brought tremendous change into various aspects of human endeavor. In the 1960s computers were used by relatively few people but presently computer has great impact on our society than any other device invented in the second half of the 20th century. The impact of computer is felt in all professions for example, in medical line, computer is used in management information system, billing system and drug administration. Likewise in education computers are useful in teaching the basic skills. In office management the use of computer has made great impact on the area of our modern office equipment which had been automated such as typewriters, communication system and language translation. In business and professional office, computer is used in inventory. Control information processing, accounting programs payroll, designing and so on to mention but a few. Man enjoys entertainment, of the computer at home after a number of advantages, it allows on to practice in private keeps one of the street and it teaches one so many things in the area of Government, taking decision planning forecasting and budgeting and so on, the use of computer to process information and to make logical decision much faster than man is steadily being exploited. Computer have become an integral part of our lives having more advantage than disadvantage. Apart from the positive impacts of computers in our world, they affect our lives in some ways which...
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...OF THE STUDY 1.0 INTRODUCTION The invention of computers has brought tremendous change into various aspects of human endeavor. In the 1960s computers were used by relatively few people but presently computer has great impact on our society than any other device invented in the second half of the 20th century. The impact of computer is felt in all professions for example, in medical line, computer is used in management information system, billing system and drug administration. Likewise in education computers are useful in teaching the basic skills. In office management the use of computer has made great impact on the area of our modern office equipment which had been automated such as typewriters, communication system and language translation. In business and professional office, computer is used in inventory. Control information processing, accounting programs payroll, designing and so on to mention but a few. Man enjoys entertainment, of the computer at home after a number of advantages, it allows on to practice in private keeps one of the street and it teaches one so many things in the area of Government, taking decision planning forecasting and budgeting and so on, the use of computer to process information and to make logical decision much faster than man is steadily being exploited. Computer have become an integral part of our lives having more advantage than disadvantage. Apart from the positive impacts of computers in our world, they affect our lives in some ways which...
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...Running Head: SHERMAN COMPUTER REPAIR NEW DIRECTION Sherman Computer Repair New Direction Kristen Nelson University of Phoenix Sherman Computer Repair New Direction There is one major thing about Sherman Computer Repair Company, they are a small company and they would like to become a larger company that is no longer just a computer repair company. Sherman Computer Repair Company would like to also become a computer assembly company. In order for them to do this they would need to look at creativity and innovation in order to make this happen. “Innovation is the process by which organizations use their resources and competences to develop new or improved goods and services or to develop new production and operating systems so that they can better respond to the needs of their customers (Jones, 2004). In order for a company to have change, innovation is very important for Sherman Computer Repair. This may require the company to restructure their current business and also include new equipment, new technology and new processes from the current way that things are currently done. With doing this, this will help the company come up with new strategies when it comes to their business. The company can look at their strengths and weaknesses and then be able to decide where things need to be changed in order for this restructuring of the organization to happen. This paper will show how these things will happen and how the companies current organizational...
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...14. A small group of managers at Falcon Computer met regularly on Wednesday mornings to develop a statement capturing what they considered to be the “Falcon culture” Their discussions were wide -ranging, covering what they thought their firm’s culture was, what it should be, and how to create it. They were probably influenced by other firms in their environment, since they were located in the Silicon Valley area of California. Falcon Computer was a new firm, having been created just eight months earlier. Since the corporation was still in the start-up phase, managers decided that it 2 6752 would be timely to create and instill the type of culture they thought would be most appropriate for their organization. After several weeks of brainstorming, writing, debating, and rewriting, the management group eventually produced a document called “Falcon Values” which described the culture of the company as they saw it. The organisational culture statement covered such topics as treatment of customers, relations among work colleagues, preferred style of social communication, the decision-making process, and the nature of the working environment. Peter Richards read over the Falcon values statements shortly after he was hired as a software trainer. After observing managerial and employee behaviours at Falcon for a few weeks, he was struck by the wide discrepancy between the...
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...Keller Graduate School of Management HR587 Managing Organization Change Course Project Draft - Prepared By: Preferred Organization: Apple Inc. - Organization Culture and Change Introduction/Organization: In this draft, we would like to discuss about Apple Inc.’s organization culture and major organization change happened in the organization and analysis of a successful organization change. Every organization has a culture of its own. And every organization undergoes organization change depending on the situation, change process is implemented by the organization for the benefits of employees, or change process may be implemented to satisfy customers or for the organization growth. The Apple Inc. story starts in 1976 with the birth of a company called Apple Computer around the creation of a system called the ‘Apple 1’ by Steven Wozniak and Steven Jobs. Apple Inc. went through a variety of dramatic changes to the company’s structure along with its performance and losses remained a continuing consistency. This project, we will discuss about organization change in Apple Inc., i.e. Restructuring of Apple Inc., implementing new technologies and shifting strategy. We believe this organization is a perfect example of undergoing major organizational change and it was a company where it started from nothing to become one of the top companies in computer and technological world. In near future we can only see rapid reaction of Apple Inc.’s growing tremendously...
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...1. Which of the following structures is most appropriate for an organization that operates in a dynamic environment? • Differentiated • Systematic • Mechanistic • Organic 2. A large video company observes that smaller companies are having success with pay-per-view movies and decides to enter the pay-per-view market. This video company is pursuing which of the following strategies? • R-strategy • Specialist strategy • K-strategy • R-specialist strategy 3. Building alliances with important customers is a valuable tactic because: • external linkages can provide power • stakeholders share goals • control of information provides power • common ties are a source of power 4. Stakeholders will generally participate in an organization if • contributions exceed inducements • inducements exceed kickbacks • payments exceed contributions • inducements exceed contributions Want ORG 581 download now ORG 581 5. At the B.A.R and Grille Restaurant, Bob and Amanda took turns cooking and waiting on tables. This type of organization is • complex • specialized • simple • coordinated 6. A large retail store has a high level of organizational inertia. Managers and employees are highly resistant to change. Which of the following is most likely to encourage organizational learning and improve the quality of decision making? • Experimenting with new ideas • Replacing the top-management team • Adopting a mechanistic structure • Listening to dissenters 7...
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...1.0 QUESTION 1 1.1 PESTEL Model The first marketing perspective action that could have been taken by Levi’s is implementing the PESTEL model. PESTEL model can be look as a market research analysis which views and group macro-environmental factors as a whole group picture and it is purposely for the manager to make decision for the organization. PESTEL can also let the manger to see the current market status, business position, and the opportunities of growing products and business. There are six factors that are grouped in the PESTEL model, the first factors is political factor which is considers about the terms and change and activities of the government. For example, government has increased the tax rate, thus the manger will make adjustment by increase current price of the year due to maintain current amount of profit. The second factor is the economic factor which looks into the current economy situation, such as inflation or recession and the exchange and interest rate. Manager will invest in more machinery or other investments when the interest rate is low. The third factor is the sociological factor which looks into the current needs and culture of the social. For instant, the demand of skinny jeans among the youngsters have increased, Levi’s will design and produce this kind of jeans. The next factor is the technological factor which deals with the affect changes or growth of technology of Levi’s. This factor should be consider seriously by Levi’s, because the...
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...technology organization that has been around for a very long time. The Company has organizations that operate all over the world. Dell explores how technology services can help organizations and people with their problems and challenges. They offer a wide range of the best technology in the world today. Many of Dell’s Technology resources include desktops, laptops, notebooks, and even more. Dell has been around for many years and has been able to maintain physical assets, human resources, knowledge, and technology successfully. Dell has used its innovative powers to expand into various market segments, including other technologies such as music players, televisions, cameras and printers. The key to their success is the direct distribution channel and elimination of product handling. The company has received various top rankings such as Number 1. P.C. supplier 10 years in a row in the United States and number 33 among the Fortune 500 companies. Dell is not only focusing on its main financial objective of return on invested capital, but also on contributing to its community and being an ethically leading company. It currently operates 9 facilities in Europe and the United states using 100 percent green energy. Dell is also the first and only computer company offering a no-cost global computer recycling system. (Dell) Dell has many Physical assets that contribute to running a successful business. Dell Computer Corporation is an innovative industry leader in the computer retail industry...
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...Organisations | 7 | 8 | Best Practises Followed | 10 | 9 | Virtual Organisation at E-Clerx | 10 | 10 | Preparing for the Future | 12 | HRM IN VIRTUAL ORGANISATIONS INTRODUCTION: Virtual organization practically means a workplace or an organizational setup where the concerned authorities and staffs are connected via computers. The term actually stresses on the remote set-up and the virtual workers may work from the home, hotels, any other remote place, which may be in some sense their workplace or where their work takes them to. Virtual organization is a new form of organization that emerged in 1990. It is also known as network organization, modular organization or digital organization. Simply stated, a virtual organization is a network of corporations made possible by what is known as Information and Communication Technology (ICT) which is flexible and is created to meet the dynamics of the market. In other words, the virtual organization is a social network in which all the horizontal and vertical boundaries are removed. In this sense, virtual organization is a boundary less organization. It consists of individuals working out of physically dispersed work places, or even individuals working out of mobile devices and not tied to any particular workplace. In the virtual organization, ICT coordinates the activities and combines the skills of workers and resources in order to achieve the common goal. The network of...
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