An Overview of Cache

The purpose of this paper is two fold. The first part gives an overview of cache, while the second part explains how the Pentium Processor implements cache.

A simplified model of a cache system will be examined first. The simplified model is expanded to explain: how a cache works, what kind of cycles a cache uses, common architectures, major components, and common organization schemes.

The implementation may differ in actual designs, however the concepts remain the same. This eliminates unnecessary detail and background in hardware design or system dependency. The second part of this paper gives more detail and specifics of how the internal caches work on the Pentium Processor.

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