Difference between von neumann and harvard architecture

What you will learn here about von neumann vs harvard architecture

  • Difference between von neumann and harvard architecture

Difference between von neumann and harvard architecture

Key important difference between von neumann and harvard architecture are given below
Parameter Von neumann architecture Harvard architecture
1)Defination The architecture which uses common bus to access data memory and program memory is called as von neumann architecture The architecture which uses separate address bus and data bus to access data memory and program memory respectively is called as harvard architecture
2)Block diagram Difference between von neumann and harvard architecture von neumann vs harvard architecture
3)Storage The von neumann architecture uses single memory space for both program memory and data memory The harvard architecture uses seperate program and data memory space
4)Access In von neumann architecture we can not access program and data memory simultaneously In harvard architecture we can access program and data memory simultaneously because it has separate program memory and data memory
5)Architecture The von neumann architecture uses CISC architecture The harvard architecture uses RISC architecture
6)Execution of instruction Execution of instruction takes more machine cycle Execution of instruction takes less machine cycle

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