Memory Mass Storage
Memory Mass Storage describes the fundamental storage technologies, like Semiconductor, Magnetic, Optical and Uncommon, detailing the main technical characteristics of the storage devices. It deals not only with semiconductor and hard disk memory, but als
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Giovanni Campardo · Federico Tiziani · Massimo Iaculo Editors
Memory Mass Storage
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Editors Giovanni Campardo Numonyx Via C. Olivetti 2 20041 Agrate Brianza Milano Italy [email protected]
Federico Tiziani Micron Via C. Olivetti 2 20041 Agrate Brianza Milano Italy [email protected]
Massimo Iaculo Micron Via Remo De Feo 1 80022 Arzano Napoli Italy [email protected]
Front cover: Giovanni Campardo Ulivi di Puglia (Puglia’s olive trees) oil on wood, 40 × 30, 2008 [Photographed by Lino Mazzucchi] ISBN 978-3-642-14751-7 e-ISBN 978-3-642-14752-4 DOI 10.1007/978-3-642-14752-4 Springer Heidelberg Dordrecht London New York © Springer-Verlag Berlin Heidelberg 2011 This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilm or in any other way, and storage in data banks. Duplication of this publication or parts thereof is permitted only under the provisions of the German Copyright Law of September 9, 1965, in its current version, and permission for use must always be obtained from Springer. Violations are liable to prosecution under the German Copyright Law. The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. Cover design: WMXDesign GmbH, Heidelberg Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com)
Preface
Creditors have better memories than debtors. (Benjamin Franklin, January 17, 1706–April 17, 1790, one of the Founding Fathers of the United States)
´ Mnemosyne (Greek Mνημoσυνη), the personification of memory in Greek mythology, was the daughter of Gaia and Uranus and the mother of the Muses by Zeus. Zeus and Mnemosyne lay together for nine consecutive nights during which the nine Muses were conceived. Mnemosyne ruled over a pool in Hades, a counterpart to the river Lethe.1 One of the five rivers of Hades, the Lethe, which flowed around the cave of Hypnos and through the underworld, was the river from which the souls of the dead drank so they would not remember their past lives when they were reincarnated. Initiates were encouraged to drink from Mnemosyne’s pool when they died, rather than from Lethe which induced to oblivion, in order to learn from their past so as to achieve a higher level of wisdom. This is a book about technologies that allow us to store large quantities of data and provide reliable storage devices. We describe the techniques and methodologies that allow us to store data, large quantities of data, just (or precisely (choose the better word)) called mass memories storage. However, memory is not an issue that concerns only technicians, engineers, and physicists, but is also very important in the philosophical tradition. Just think of Plato
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