computer performance.

computer performance.

1. RAM

   • stores the programs, parts of the operating systems and the files currently being used
   • RAM is volatile, meaning the data is not stored when the computer system is switched off.

2. CPU {central processing unit}

   • fetches, decodes and executes instructions

3. cores

   • the number of independent processors in the CPU which run the fetch decode execute cycle simultaneously.
     • dual core: 2 independent processors in the CPU working
       • quad core: 4 independent processors in the CPU working
         • simultaneously: at the same time.

4. clock speed.