CPU

CPU

1. performance

   • clock speed
     • 1 GHz means 1 billion cycles per second
   • cores
     • how many cycles can be performed at once
   • cache
     • stores frequntly used programs so the cpu can accsess them faster

2. components

   • registers
     • Memory Adress Register
       • stores the adresses curently in use
     • memory data register
       • holds the content found in the MAR
     • accumalator
       • tores the output of the alu
   • ALU
     • arifmatic logic unit
       • it does arifimatic and logical decisions
   • pc
     • program counter

3. purpose

   • fetch decode excute cycle
     • fetches decodes and exucutes instructions