Advances in Data Storage Technology Contents I. Introduction 3 II. Purpose of storage 4 III. Hierarchy of storage 6 A. Primary storage 6 B. Secondary storage 7 C. Tertiary storage 7 D. Off-line storage 8 IV. Characteristics of storage 9 A. Volatility 9 B. Mutability 9 C. Accessibility 10 D. Addressability 10 E. Capacity 11 F. Performance 11 G. Energy
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CHAPTER 01 Data Integrity Proofs In Cloud Storage ABSTRACT: Cloud computing has been envisioned as the de-facto solution to the rising storage costs of IT Enterprises. With the high costs of data storage devices as well as the rapid rate at which data is being generated it proves costly for enterprises or individual users to frequently update their hardware. Apart from reduction in storage costs data outsourcing to the cloud also helps in reducing the maintenance. Cloud storage moves the user’s
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The Evolution of Data Models The quest for better data management has led to different models that attempt to resolve the file system’s critical shortcomings. Because each data model evolved from its predecessors‚ it is essential to examine the major data models in roughly chronological order. 1.1 The Hierarchical Model A Hierarchical Database Model is a data model in which the data is organized into a tree-like structure. The structure allows representing information using parent/child relationships:
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|Hand in Date |29/05/2013 | Assignment Introduction The assignment gives you the opportunity to develop techniques for data gathering and storage‚ an understanding of the tools available to create and present useful information‚ in order to make business decisions. Learning
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Assignment 2 Evolution of Ethernet With the advancement information technologies such as multi-core processors‚ digital media and mega storage architectures‚ increased Ethernet capacities will continue to be developed. It is likely that approximately every five to seven years will produce new standards to meet new technologies in Ethernet capacities. We can expect to see a greater push towards unified networking with an increasing emphasis on increased data storage at lower costs. New standards will be
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Cloud Storage I Need a Place to Store My Stuff In one of his comedic sketches‚ George Carlin talked about the whole point of life was to acquire new stuff. With the acquisition of new possessions‚ a place to store them becomes necessary‚ thus bigger houses are purchased to provide more space for storage of our possessions or companies are paid for storage spaces. The same can be said about computer information‚ as data accumulates storage needs increases. To satisfy that need‚ larger hard disk
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Data Encryption Standard In 1972‚ the NBS Institute for Computer Sciences and Technology (ICST) initiated a project in computer security‚ a subject then in its infancy. One of the first goals of the project was to develop a cryptographic algorithm standard that could be used to protect sensitive and valuable data during transmission and in storage. Prior to this NBS initiative‚ encryption had been largely the concern of military and intelligence organizations. The encryption algorithms‚ i.e.‚ the
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to study the workings of Ethernet cables to enhance practical knowledge of application. II. Apparatus 1) Standard Cat5 Ethernet Cable (6feet long 2) RJ45 Connectors 3) Multi Network Cable Tester 4) RJ45 Wire Crimp Tool & Cable Stripper III. Procedure 1) Determine the type of Ethernet cable that needs to be created‚ either “Straight through” or “Cross Over”. For this experiment‚ a Straight through cable will be required. 2) Cut an Ethernet cable of 6feet in length
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THREE DESCRIPTIVE STATISTICS: NUMERICAL MEASURES MULTIPLE CHOICE QUESTIONS In the following multiple choice questions‚ circle the correct answer. 1. Which of the following provides a measure of central location for the data? a. standard deviation b. mean c. variance d. range Answer: b 2. A numerical value used as a summary measure for a sample‚ such as sample mean‚ is known as a a. population parameter b. sample parameter c. sample
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Metro Ethernet Disclaimer; this is intended to be an introductory technical article; certain details have been excluded in the interests of space and clarity. Network design examples are presented to illustrate specific technical points and are not intended to fully complete. Historically WAN’s (Wide Area Networks) and LAN’s (Local Area Networks) have relied on independent technologies. At a physical layer WAN technologies today continue to be based largely on legacy TDM systems that were built
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