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    • How to Clear Your Cache

      The temporary Internet folder in your Internet browser contains a collection of images, sounds, and web pages. These are sites you have visited in the past or items you have downloaded. This temporary file is commonly known as the cache. Storing these items on your temporary Internet folder can make browsing the Internet faster. ... more »

    • How to Change the Browser Cache

      Your browser cache is a tool that saves information while you are on the Internet. Information includes the sites that you've visited, passwords that you've saved and user names that you use. You may want to adjust your browser cache so that it saves more or less of your information as needed. You can also clear your cache in order to... more »

    • How to Delete the Cache on a Hard Drive

      The cache is the storage of your Internet activity. It's basically a listing of what you have downloaded, the sites you have visited, images you have saved, etc. All of this information is stored in your temporary Internet files folder. Deciding to delete the cache from your hard drive is a trade-off. On one hand, your cache can... more »

    • How to Remove Cache Files

      Cache files are the files that are kept in the "Temporary Internet Files" folder on your computer. These files contain the history of Web pages you have visited along with other files related to your Web browsing history. more »

    • How to Flush the DNS Cache in Mac OS X

      DNS cache or Domain Name Server cache is the local file your Mac system uses to convert or resolve host names to numbered IP (internet protocol) addresses. It is possible for the cache file to become corrupt or damaged, this is especially important for web designers and system administrators performing network tasks and coding web sites. more »

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    • Clear Computer Cookies

      Computers, while a necessary part of our daily lives, can also be as much of a daily pain. Take...

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    Wikipedia

    Cache

    In computer science, a cache (, ) is a collection of data duplicating original values stored elsewhere or computed earlier, where the original data is expensive to fetch (owing to longer access time) or to compute, compared to the cost of reading the cache. In other words, a cache operates as a temporary storage area where frequently accessed data can be stored for rapid access. Once the data is stored in the cache, it can be used in the future by accessing the cached copy rather than re-fetching or recomputing the original data.

    Caches have proven extremely effective in many areas of computing because access patterns in typical computer applications have locality of reference. There are several kinds of locality, but this article primarily deals with data that are accessed close together in time (temporal locality). The data might or might not be located physically close to each other (spatial locality).

    History
    Use of the word cache in the computer context originated in 1967 during preparation of an article for publication in the IBM Systems Journal. The paper concerned an exciting memory improvement in Model 85, a latecomer in the IBM System/360 product-line. The editor of the Journal, Lyle R. Johnson, pleaded for a more descriptive term than high-speed buffer. Not receiving any suitable ideas, he suggested the noun cache, meaning a safekeeping or storage place . The paper was published in early 1968, the authors were honoured by IBM, their work was widely welcomed and subsequently improved upon, and cache soon became standard usage in computer literature.G. C. Stierhoff and A. G. Davis. A History of the IBM Systems Journal. IEEE Annals of the History of Computing, Vol. 20, No. 1 (Jan. 1998), pages 29-35.

    Operation


    Hardware implements cache as a block of memory for temporary storage of data likely to be used again. CPUs and hard drives frequently use a cache, as do web browsers and web servers.

    A cache is made up read more at » http://en.wikipedia.org/wiki/Cache

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