CPU-CENTRAL PROGRAMMING UNIT

CPU-CENTRAL PROGRAMMING UNIT

1. Fetch

   • decode
     • execute
       • The instruction is carried out
     • The instruction is understood by the CPU
   • The instruction is moved from memory to the CPU

2. processor speed

   • 1 kilohertz(khz)=1000 cycles per second
   • 1 megohertz(mhz)=1,000,000 cycles per second
   • 1 gigahertz(ghz)=1,000,000,000 (1 billion) cycles