📌Von Neumann Architecture
📌Harvard Architecture
📌This classification organization of a is mainly program based on memory(ROM) data memory(RAM).
✏️Von Neumann Architecture
👉 It is also referred as Princeton Architecture.
👉It has a single memory storage tohold both program Instructions and data instructions .... For example :common program and storage space.
👉Instructions and data are accessed during same bus system.
✏️Advantage :
👉Simple design of microcontroller chip.
👉Reduces required hardware .
✏️Disadvantage :
👉Slower excution of a program.
✏️Harvard Architecture
👉It has physically separate memory storage to hold program Instructions and data i.e separate program and data space.
👉Since it has separate buses to access program and data memory it is possible to access program memory and data memory simultaneously.
✏️Advantage:
👉Faster operation.
✏️Disadvantage:
👉It requires more hardware.
NOTE:
👉8051 family architecture are based on Harvard Architecture.
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