CHAPTER TWO NETWORKING SYSTEMS AND LOCAL AREA NETWORKS (LAN) A network is a system of two or more computers that are connected in some manner. Each computer on the network has access to the files and peripheral equipment (such as printers or modems) on all the other computers on the network. The origin of local area networks can be traced‚ in part‚ to IBM terminal equipment introduced in 1974. At that time‚ IBM introduced a series of terminal devices designed for use in transaction-processing
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BSc Information Systems Case Study: Network Design for China Steel Ltd Table of Contents Introduction 3 Network Diagrams 3 Inter-Site Connections (WANS) 3 Leased Line 4 Circuit Switching 4 ISDN 4 Packet Switching 5 MPLS 5 VPN (Remote Access) 6 Inner-Site Connections (LANS) 6 Physical & Data Link Protocols 6 LAN Hardware Requirements 7 Layer 3 Protocols 8 IPv4 & IPv6 8
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SQL also helps with respect to deferral of hardware replacement decision. Answer the following questions on hardware deferral What is the probability of postponing hardware purchase for a year? Hint (a year has 12 months or four 3-month periods). 3 Points Probability of postponed purchase (A) for 3 months P(A) = .6 Probability of making purchase (B) P(A) = 1-P(A) .4 Probability of not making a hardware purchase for 1 year P(A)4 .1296 Hardware Cost Saving if postponed by a year 30%
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Introduction 2. Chapter1 - History of software engineering & software Engineering as a Profession 3. Chapter2 - Software design & Modeling languages for software design 4. Chapter3 - Software development & Software Testing 5. Chapter4 - Software development process‚ Computer-aided Software engineering Software quality Introduction Software engineering The new Airbus A380 uses a substantial amount of software to create a "paperless" cockpit. Software engineering successfully maps and plans
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Purpose Translate the logical description of data into the technical specifications of storing and retrieving data. * Goal Create a design for storing data that will provide adequate performance and ensure database integrity‚ security and recoverability. Basically‚ the primary goal of physical database design is data processing efficiency. * Physical Design Process Inputs such as normalized relations and estimation of their volume; definitions of each attributes; expectations and requirements
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COMPUTER NETWORKS NETWORK TELEPHONY –VOICE OVER INTERNET PROTOCOL(VoIP) VoIP is a set of technologies that enable voice calls to be carried over the internet (or other networks designed for data)‚ rather than the traditional telephone landline system-the Public Switched Telephone Networks(PSTN). VoIP uses IP protocols‚ originally designed for the internet‚ to break voice calls up into digital ‘packets’. In order for a call to take place the separate packets travel over an IP network and are reassembled
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CONFLICT RESOLUTION Submitted by: Shaddine Charlotte B. Benavidez Czarina Louisse C. Martinez Franz Ivy O. Talagon 3BPS February 22‚ 2013 I. Theme Conflict Resolution II. Objectives At the end of the activity‚ the participants are expected to: * To understand the meaning of Conflict Resolution and as to why it happens in different situations. * To comprehend how to handle conflicts properly. * To know the different styles of handling conflict. * To apply the
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facts that systems are guaranteed to operate correctly. Although software processes have existed for many years now‚ domain knowledge should be applied throughout every phase of the software development process. An appreciation of the assumptions underlying software engineering can lead to a better understanding of the applicability of structure and quality of work produced. Software plays an important role in business decision-making‚ and because of its growing importance‚ assumptions should
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Hefty Hardware Class ID - 100550 08/10/2013 Revanth Muppavarapu Table of contents 1. Abstract…………………………………………………………………………………..3 2. Introduction……………………………………………………………………………....4 3. Effectiveness of IT/business partnership……………………………………………….4 4. Shortcomings of the business and IT…………………………………………………...5 4.1. Business shortcomings……………………………………………………...…......5 4.2. IT shortcomings………………………………………………...…………………6 5. Recommended plan
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Introduction to Computer Networks Spring 2013 Chapter 1 Data Communications and Networks Overview and Protocol Layers Dr. Çağrı Güngör 1 Basic Info about the Course • Course Content (tentative): — Computer networks; network architectures; protocol layers; TCP/IP; principles of Internet; wireless networks; introduction to network management‚ etc.. • Course Objectives: — Understand widely known network protocols‚ communication architectures‚ and wireless networks‚ — Learn TCP/IP and protocol
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