Von Neumann Architecture

Von Neumann Architecture

1. registers

   • program counter
     • Stores the address of the next instruction to be run
   • 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. components

   • control unit
     • Controls the flow of data between the CPU and other parts of the computer system
   • Cache
     • Stores the most frequently used instructions of the CPU
   • Arithmetic and logic unit
     • The arithmetic logic unit performs all the calculations for the CPU