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Difference between von newman and Harvard computer architecture?
Wiki User
∙ 16y ago
In a von Neumann architecture, program and data are stored in the same memory and managed by the same information-handling subsystem. In the Harvard architecture, program and data are stored and handled by different subsystems. This is the essential difference between the two architectures.
In the original "Harvard computer", built in 1944 and for which the architecture is named, the program-handling task and the data-handling task were sufficiently different to result in two different storage technologies. Today, the vast majority of computers are von Neumann architecture because of the efficiencies gained in designing, implementing, and operating one memory system instead of two.
However, in some niches, particularly certain embedded applications where the program is more-or-less hard wired, task requirements are such that the Harvard architecture can provide distinct operational advantages. Under certain conditions, a Harvard computer can be much faster than a von Neumann computer because data and program do not contend for the same information pathway, and storing the program in an immutable read-only memory can result in vast reliability improvements.
Wiki User
∙ 16y ago
Wiki User
∙ 12y agoIn the von Neumann architecture, program and data are stored in the same memory and managed by the same information-handling subsystem. In the Harvard architecture, program and data are stored and handled by different subsystems. This is the essential difference between the two architectures.
However, in some niches, particularly certain embedded applications where the program is more-or-less hard wired, task requirements are such that the Harvard architecture can provide distinct operational advantages. Under certain conditions, a Harvard computer can be much faster than a von Neumann computer because data and program do not contend for the same information pathway, and storing the program in an immutable read-only memory can result in vast reliability improvements.
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