1.1 systems architecture

1.1 systems architecture

1. Mhz

   • carries out mllion instructions per second

2. Ghz

   • carries out billon nstructions per second

3. processor

   • performs calculations in the computer

4. MDR

   • Memory data recogniser

5. embedded system

   • a computer system within another device

6. CPU

   • to fetch decode and execute data

7. ALU

   • Performs arithmetic and logical operations

8. ROM

9. ROM

   • Read only memory
     • instruction are permanently fetched on to arom chp

10. RAM

    • Random access memor
      • volotile

11. cores

    • in whch instructions are excecuted

12. accumulator

    • arithmetic and logic results are stored

13. cache

    • stores data