The Von Neumann Architecture

The Von Neumann Architecture

1. Programme Unit

   • Output
   • Input
   • (Data)Memory
   • Accumulator
     • (Data)Memory

2. PC

   • CPU
     • ALU
       • ACC
         • MDR
           • Cache
             • CU
               • MAR
                 • Address
                   • Data
                     • Load address 5
                       • Add address 6
                         • Store in address 6
                           • End
                             • 23
                               • 12
                   • 1
                     • 2
                       • 3
                         • 4
                           • 5
                             • 6

3. Fetch,decode and execute instructions

4. Programme Counter

   • Memory Address Register
     • Memory Data Register
       • Accumulation

5. CENTRAL PROCESSING UNIT

   • Control Unit
     • Arithmetic/Logic Unit
       • Memory Unit
   • Input device
   • Output device

6. CPU

   • A fan that keeps the processor cool

7. Memory

   • stores the programme

8. Processor

   • Carries out the instructions

9. CPU

   • Arithmetic/Logic unit (ALU)
   • PC (Programme Counter)
   • MDR (Memory Data Register)
   • Cache
   • Control Unit

10. Control Unit

    • Sends signals to CPU

11. Cache

    • Provides fast access to frequently load instructions and data