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Statements

Subject Item

dbr:Memory_architecture

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Memory architecture

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Memory architecture describes the methods used to implement electronic computer data storage in a manner that is a combination of the fastest, most reliable, most durable, and least expensive way to store and retrieve information. Depending on the specific application, a compromise of one of these requirements may be necessary in order to improve another requirement. Memory architecture also explains how binary digits are converted into electric signals and then stored in the memory cells. And also the structure of a memory cell.

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dbr:Multi-channel_memory_architecture dbr:Processor_register dbr:32-bit_computing dbr:Memory_hierarchy dbr:Conventional_memory dbr:Tagged_architecture dbr:Memory_virtualization dbr:Bus_(computing) dbr:Memory_address dbr:Registered_memory dbr:Parity_bit dbr:PCI_hole dbr:Convolution dbr:Modified_Harvard_architecture dbr:Shared_memory dbr:Expanded_memory dbc:Computer_memory dbr:Distributed_shared_memory dbr:Dynamic_random-access_memory dbr:Uniform_memory_access dbr:Digital_signal_processor dbr:Stack-based_memory_allocation dbr:64-bit_computing dbr:Memory_model_(programming) dbr:Cache_(computing) dbr:Address_generation_unit dbr:16-bit_computing dbr:ECC_memory dbr:High_memory_area dbr:Flat_memory_model dbr:Multiply–accumulate_operation dbr:Extended_memory dbr:Cache-only_memory_architecture dbr:Memory_refresh dbr:X86_memory_segmentation dbr:Non-uniform_memory_access dbr:Harvard_architecture dbr:Virtual_memory dbr:Distributed_memory dbr:Deterministic_memory dbr:Memory_management dbr:Universal_memory dbr:Memory-disk_synchronization dbr:Memory_protection dbr:Lernmatrix dbr:Memory-level_parallelism dbr:Computer_data_storage dbr:Flash_memory dbr:8-bit_computing dbr:Von_Neumann_architecture

dbo:abstract

Memory architecture describes the methods used to implement electronic computer data storage in a manner that is a combination of the fastest, most reliable, most durable, and least expensive way to store and retrieve information. Depending on the specific application, a compromise of one of these requirements may be necessary in order to improve another requirement. Memory architecture also explains how binary digits are converted into electric signals and then stored in the memory cells. And also the structure of a memory cell. For example, dynamic memory is commonly used for primary data storage due to its fast access speed. However dynamic memory must be repeatedly refreshed with a surge of current dozens of time per second, or the stored data will decay and be lost. Flash memory allows for long-term storage over a period of years, but it is much slower than dynamic memory, and the static memory storage cells wear out with frequent use. Similarly, the data bus is often designed to suit specific needs such as serial or parallel data access, and the memory may be designed to provide for parity error detection or even error correction. The earliest memory architectures are the Harvard architecture, which has two physically separate memories and data paths for program and data, and the Princeton architecture which uses a single memory and data path for both program and data storage. Most general purpose computers use a hybrid split-cache modified Harvard architecture that appears to a application program to have a pure Princeton architecture machine with gigabytes of virtual memory, but internally (for speed) it operates with an instruction cache physically separate from a data cache, more like the Harvard model. DSP systems usually have a specialized, high bandwidth memory subsystem; with no support for memory protection or virtual memory management.Many digital signal processors have 3 physically separate memories and datapaths -- program storage, coefficient storage, and data storage.A series of multiply–accumulate operations fetch from all three areas simultaneously to efficiently implement audio filters as convolutions.

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