Von Neumann architecture

Von Neumann architecture

1. registers

   • program counter
     • stores the next address of the instruction that
   • Memory Address Register (MAR)
     • Stores the memory address where the data or instruction will be fetched/written.
   • Accumulator
     • Stores the intermediate results of a calculation.
   • Current Instruction Register
     • Stores the instruction currently being executed
   • Memory Address Register
     • Stores the memory address where the data or instruction will be fetched/written.
   • Memory Data Register
     • Stores the data or instruction which is being fetched/written from/to memory.

2. control unit

3. Arithmetic logic unit