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What is the Difference between von neumann and Harvard computer architecture?


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Answered 2011-07-20 02:37:47
von Neumann vs. Harvard Architecture

In 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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what is relevance between computer and architecture


Classical architecture is usually called on Greek and Roman architecture, describing an ancient era of architecture. Software architecture has nothing to do with buildingsm it is computer systems engineering.


In the Von Neumann (not "von humann") architecture instructions and data share the same bus and address space, while in the Harvard architecture instructions and data are accessed through separate buses.


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.


difference between von neumann and harvard machine


The difference are as follows:Difference of strengthDifference of labourDifference of technology


Computer Designing is where you kind of sketch the look of the computer, kind of like an artistComputer Organization Not SureComputer Architecture is where you choose which parts go in and which parts don't. YOU also work with the person who does the computer designing to choose what the inside is like. :P-Kyle LewisAdded By: DaviePCRepair:There really is no difference between computer architecture and Computer Design.A computer's architecture is its abstract model and is the programmer's view in terms of instructions addressing modes and registers. A computer's organization expresses the realization of the architecture. Architecture describes whatthe computer does and organization describes how it does it.


Computer architecture means behavior and structure of system while "computer organization" deals with how the various hardware components interact with each other to perform various functionalities (micro instructions) and are usually transparent to the user


architecture is the study, design is the systematized approach


computer architecture refers to the relationship between different hardware component of a computer system.computer organisation refers to how operational attributes are linked togather to realised the architecture specifications.


Harvard architecture : _________ ______ | code | | | | memory | | CPU | <-----> |_________| | | | | ----------- | data | | memory | ---------------- the CPU generated address is either point to code or data memory. Princeton arhitecture: data memory <--------> CPU <-------> code memory in this the CPU generated address will point to both the data and code. for this some internal operation are take place to point to either data or code. answered by prasad. mail prasad40613@gmail.com


An architecture is design.But not all design is architecture.Architecture establishes constraints on downstream activity and those activity must produce artifacts.But architecture does define an implementation.But design defines the implementation.


Is it because architecture has more meaning than prehistoric.


One has the word University and the other has the word College.


There are basically two types of digital computer architectures. The first one is called Von Neumann architecture and later Harvard architecture was adopted for designing digital computers.Von Neumann Architecture:It is named after the mathematician and early computer scientist John Von Neumann.The computer has single storage system(memory) for storing data as well as program to be executed.Processor needs two clock cycles to complete an instruction.Pipelining the instructions is not possible with this architecture.In the first clock cycle the processor gets the instruction from memory and decodes it. In the next clock cycle the required data is taken from memory. For each instruction this cycle repeats and hence needs two cycles to complete an instruction.This is a relatively older architecture and was replaced by Harvard architecture.Harvard Architecture:The name is originated from "Harvard Mark I" a relay based old computer.The computer has two separate memories for storing data and program.Processor can complete an instruction in one cycle if appropriate pipelining strategies are implemented.In the first stage of pipeline the instruction to be executed can be taken from program memory.In the second stage of pipeline data is taken from the data memory using the decoded instruction or address.Most of the modern computing architectures are based on Harvard architecture.But the number of stages in the pipeline varies from system to system.These are the basic differences between the two architectures.A more comprehensive list can be found here with respect to ARM class of processors.


The difference between architecture and topology is logical vs physical. Architecture is about the logical design of something. Topology is about the physical elements required to enable the architectural design. The difference between architecture and topology is logical vs physical. Architecture is about the logical design of something. Topology is about the physical elements required to enable the architectural design. The difference between architecture and topology is logical vs physical. Architecture is about the logical design of something. Topology is about the physical elements required to enable the architectural design.


the computer scientist are more formula oriented by working more with the software and their architecture while the computer technology scientist act on a more interrelationship between the hardware and software. Bsc Computer technology is a bridge for IT and Computer science


Computer organization is how operational attributes are linked together and contribute to realise the architectural specifications.Computer architecture is the architectural attrributes like physical address memory,CPU and how they should be made and made to coordinate with each other keeping the future demands and goals in mind.Computer architecture comes before computer organiation.Its like building the design and architecture of house takes maximum time and then organisation is building house by bricks or by latest technology keeping the basic layout and architecture of house in mind.



THE DESIGNER DESIGN THE COMPUTER ARCHITECTURE IN A VERY COMPLEX WAY AND user are not familiar with this complex structure . the hiding of complexity of computer design are called abstraction


A computer's architecture is its abstract model and is the programmer's view in terms of instructions, addressing modes and registers. A computer's organization expresses the realization of the architecture. Architecture describes whatthe computer does and organization describes how it does it. Architecture and organization are independent; you can change the organization of a computer without changing its architecture. For example, a 64-bit architecture can be internally organized as a true 64-bit machine or as a 16-bit machine that uses four cycles to handle 64-bit values. The difference between architecture and organization is best illustrated by a non-computer example. Is the gear lever in a car part of its architecture or organization? The architecture of a car is simple; it transports you from A to B. The gear lever belongs to the car's organization because it implements the function of a car but is not part of that function (a car does not intrinsically need a gear lever).


Take the words 'natural' and 'manmade', think about them, and you will have the answer.


Contrast is the difference between the "empties" and the "fulls".


The difference between desktop computer and personal computer is that desktop computer is for everyone and personal computer is for your own self!


the same difference there is between the design of a house and the elements used to build that design.



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