Content-Addressable Memories

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Release : 2012-12-06
Genre : Computers
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Book Rating : 560/5 ( reviews)

Content-Addressable Memories - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Content-Addressable Memories write by Teuvo Kohonen. This book was released on 2012-12-06. Content-Addressable Memories available in PDF, EPUB and Kindle. Due to continual progress in the large-scale integration of semiconductor circuits, parallel computing principles can already be met in low-cost sys tems: numerous examples exist in image processing, for which special hard ware is implementable with quite modest resources even by nonprofessional designers. Principles of content addressing, if thoroughly understood, can thereby be applied effectively using standard components. On the other hand, mass storage based on associative principles still exists only in the long term plans of computer technologists. This situation is somewhat confused by the fact that certain expectations are held for the development of new storage media such as optical memories and "spin glasses" (metal alloys with low-density magnetic impurities). Their technologies, however, may not ripen until after "fifth generation" computers have been built. It seems that software methods for content addressing, especially those based on hash coding principles, are still holding their position firmly, and a few innovations have been developed recently. As they need no special hardware, one might expect that they will spread to a wide circle of users. This monograph is based on an extensive literature survey, most of which was published in the First Edition. I have added Chap. ?, which contains a review of more recent work. This updated book now has references to over 1200 original publications. In the editing of the new material, I received valuable help from Anneli HeimbUrger, M. Sc. , and Mrs. Leila Koivisto.

Content-Addressable Memories

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Release : 2012-12-06
Genre : Computers
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Book Rating : 520/5 ( reviews)

Content-Addressable Memories - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Content-Addressable Memories write by T. Kohonen. This book was released on 2012-12-06. Content-Addressable Memories available in PDF, EPUB and Kindle. Designers and users of computer systems have long been aware of the fact that inclusion of some kind of content-addressable or "associative" functions in the storage and retrieval mechanisms would allow a more effective and straightforward organization of data than with the usual addressed memories, with the result that the computing power would be significantly increased. However, although the basic principles of content-addressing have been known for over twenty years, the hardware content-addressable memories (CAMs) have found their way only to special roles such as small buffer memories and con trol units. This situation now seems to be changing: Because of the develop ment of new technologies such as very-large-scale integration of semiconduc tor circuits, charge-coupled devices, magnetic-bubble memories, and certain devices based on quantum-mechanical effects, an increasing amount of active searching functions can be transferred to memory units. The prices of the more complex memory components which earlier were too high to allow the application of these principles to mass memories will be reduced to a fraction of the to tal system costs, and this will certainly have a significant impact on the new computer architectures. In order to advance the new memory principles and technologies, more in formation ought to be made accessible to a common user.

Associative Memory

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Release : 2012-12-06
Genre : Science
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Book Rating : 846/5 ( reviews)

Associative Memory - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Associative Memory write by T. Kohonen. This book was released on 2012-12-06. Associative Memory available in PDF, EPUB and Kindle. About the Scope of This Text This book contains two types of material ~ first, the many divergent and often diffuse meanings given to the concepts of association, associative memory, and associative recaZZ are expounded. A review of this kind was felt necessary because there apparently does not exist any single monograph which could serve as a reference to these topics. But the presentation of the main body of this text is motivated by quite other reasons: in recent years, plenty of interesting mathematical and system-theoretical material has been published which makes it possible to gain a view of associative memory which is different from the conventional abstract and computationally oriented approaches. It seems that the basic operation of associative memory, the storage of information together with the relations or links between the data items, and the selective recall of stored information relative to a piece of key or cue information presented, is not restricted to certain computer-technological implementations but can also be reflected in more general mathematically describable processes in certain physical or other systems, especially in their adaptive state changes. It further seems that some generally known forms of associative memory, namely, certain computer technological artifacts, or abstract systems of concepts or data, are in fact special representations of a class of processes characterized as associative memory.

A Content Addressable Memory

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Release : 1981
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A Content Addressable Memory - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook A Content Addressable Memory write by Douglas Crandall. This book was released on 1981. A Content Addressable Memory available in PDF, EPUB and Kindle.

A Sequential Content Addressable Memory and Its Applications

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Release : 1972
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A Sequential Content Addressable Memory and Its Applications - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook A Sequential Content Addressable Memory and Its Applications write by Michael Glenn Ogle. This book was released on 1972. A Sequential Content Addressable Memory and Its Applications available in PDF, EPUB and Kindle.