Data Warehousing‚ Data Marts and Data Mining Data Marts A data mart is a subset of an organizational data store‚ usually oriented to a specific purpose or major data subject‚ that may be distributed to support business needs. Data marts are analytical data stores designed to focus on specific business functions for a specific community within an organization. Data marts are often derived from subsets of data in a data warehouse‚ though in the bottom-up data warehouse design methodology the data
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Page 1 of 15 ITM 309 Fall 2010 Exam Two Review Outline – November 3‚ 2010 Ethics and Information Security – Chapter 4 1． Business Ethics Ethics – the principles and standards that guide our behavior toward other people Issues affected by technology advances： 1) Intellectual property- Intangible creative work that is embodied in physical form 2) Copyright- The legal protection afforded an expression of an idea‚ such as a song‚ video game‚ and some types of proprietary documents 3) Fair use
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4. Big Data 4.1 Introduction In 2004‚ Wal-Mart claimed to have the largest data warehouse with 500 terabytes storage (equivalent to 50 printed collections of the US Library of Congress). In 2009‚ eBay storage amounted to eight petabytes (think of 104 years of HD-TV video). Two years later‚ the Yahoo warehouse totalled 170 petabytes1 (8.5 times of all hard disk drives created in 1995)2. Since the rise of digitisation‚ enterprises from various verticals have amassed burgeoning amounts
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Running head: COMPARE AND CONTRAST UNIX AND WINDOWS OPERATING SYSTEMS Compare and Contrast UNIX and Windows Operating Systems Debra Avent‚ William Brown‚ Antonio Gilbert and Nicole Wojasinski University of Phoenix Intro There are many operating systems in use today. In this paper we are going to compare and contrast UNIX and Windows. What is this UNIX and how does it compare and contrast with the Microsoft Windows operating system? UNIX ’s biggest advantage is that its source is available
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Chapter 1 Past‚ Present and Future Trends in the Use of Computers in Fisheries Research Bernard A. Megrey and Erlend Moksness I think it’s fair to say that personal computers have become the most empowering tool we’ve ever created. They’re tools of communication‚ they’re tools of creativity‚ and they can be shaped by their user. Bill Gates‚ Co-founder‚ Microsoft Corporation Long before Apple‚ one of our engineers came to me with the suggestion that Intel ought to build a computer for the home
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downtime‚ and then provide a disaster recovery plan in the event that the website should crash or stop working. First of all‚ we will need to purchase the hardware for the system‚ which consists of buying four Dell PowerEdge R620 servers that have 32 gigabytes (GB) of memory and 10 terabytes (TB) of storage space for each server. Two of the servers will be configured for web hosting‚ a primary and a backup‚ then one server will be configured for data storage and the last will be configured as an email
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1. LIST OF FIGURES NO Description Page Figure 1.1 : MCVD (modified chemical vapour deposition) Process 4 Figure 1.2 :OVD (outside vapour deposition) Process 5 Figure 1.3 : Drawing of fiber 6 Figure 1.4 : Double crucible method 7 Figure 2.1 : Total internal reflection in fiber optics 9 Figure 3.1 : Transfer rate with different types of cable and LAN 10 Figure 3.2 : Spiral Motion of Photons 12 2. INTRODUCTION
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Mark Scheme (Results) June 2011 International GCSE Information Communication Technology Paper 01 Edexcel is one of the leading examining and awarding bodies in the UK and throughout the world. We provide a wide range of qualifications including academic‚ vocational‚ occupational and specific programmes for employers. Through a network of UK and overseas offices‚ Edexcel’s centres receive the support they need to help them deliver their education and training programmes to learners
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GLOSSARY WORD DEFINITION Address The identification of a particular location in memory where a data item or instruction is stored. Algorithm A sequence of instructions which rigorously defines a solution to a problem. Antiglare screen A polarized screen attached to the front of the monitor‚ which reduces eye strain. Assembler A program which converts ASSEMBLY LANGUAGE into MACHINE CODE to be used by a computer. Automation Computer control of machines
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CLASS SAMPLE PAPER 2013-14 4 The actual test paper has 35 questions. Time allowed : 60 minutes. There are 3 sections: 5 questions in section I‚ 10 in section II and 20 in section III. SYLLABUS SOF NATIONAL CYBER OLYMPIAD Section – I (Mental Ability) : Number and Numeration (5 digit numbers)‚ Addition‚ Subtraction‚ Multiplication‚ Division‚ Geometrical Shapes‚ Measurement of Time‚ Measurement of Length‚ Mass‚ Perimeter and Capacity‚ Money‚ Fractions‚ Pictorial Representation
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