System Architecture / Memory

System Architecture / Memory

1. CPU

   • Procces's
     • Fetch
     • Decode
     • Execute
   • Performance
     • Cache
       • Level 1 - fast but low storage
       • Level 2 - Medium speed and medium storage
       • Level 3 - Slow but large storage
     • Clock speed
       • Measured in hz
       • 1 hz = 1 cycle
     • Cores
       • 1 core = 1 cylce
   • Components
     • Arithmetic Logic Unit (ALU)
     • Control Unit (CU
     • Register
       • High speed memory that stores instructions

2. Memory and Storage

   • RAM
     • Stores instructions / data from applications
     • Volatile
   • ROM
     • Stores the boot up instructions
     • Non - Volatile
   • Virtual Memory
     • A section of your drive which stores data the CPU doesn't need right away
     • Much slower than RAM