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  2. Computer memory - Wikipedia

    en.wikipedia.org/wiki/Computer_memory

    Historical lowest retail price of computer memory and storage Electromechanical memory used in the IBM 602, an early punch multiplying calculator Detail of the back of a section of ENIAC, showing vacuum tubes Williams tube used as memory in the IAS computer c. 1951 8 GB microSDHC card on top of 8 bytes of magnetic-core memory (1 core is 1 bit.)

  3. Cache performance measurement and metric - Wikipedia

    en.wikipedia.org/wiki/Cache_performance...

    A CPU cache is a piece of hardware that reduces access time to data in memory by keeping some part of the frequently used data of the main memory in a 'cache' of smaller and faster memory. The performance of a computer system depends on the performance of all individual units—which include execution units like integer, branch and floating ...

  4. Computer performance - Wikipedia

    en.wikipedia.org/wiki/Computer_performance

    In computing, computer performance is the amount of useful work accomplished by a computer system. Outside of specific contexts, computer performance is estimated in terms of accuracy, efficiency and speed of executing computer program instructions. When it comes to high computer performance, one or more of the following factors might be involved:

  5. Memory hierarchy - Wikipedia

    en.wikipedia.org/wiki/Memory_hierarchy

    Memory hierarchy affects performance in computer architectural design, algorithm predictions, and lower level programming constructs involving locality of reference. Designing for high performance requires considering the restrictions of the memory hierarchy, i.e. the size and capabilities of each component.

  6. Average memory access time - Wikipedia

    en.wikipedia.org/wiki/Average_memory_access_time

    It focuses on how locality and cache misses affect overall performance and allows for a quick analysis of different cache design techniques. A tacit assumption of AMAT is that a data access is either a hit or a miss, meaning the memory only supports sequential accesses and cannot have multiple accesses occurring simultaneously. Recently AMAT ...

  7. Cache (computing) - Wikipedia

    en.wikipedia.org/wiki/Cache_(computing)

    Diagram of a CPU memory cache operation. In computing, a cache (/ k æ สƒ / โ“˜ KASH) [1] is a hardware or software component that stores data so that future requests for that data can be served faster; the data stored in a cache might be the result of an earlier computation or a copy of data stored elsewhere.

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