computer performance

computer performance

1. Clock speed

2. cache

   • what
     • cache memory is faster and more expensive than RAM
     • cache memory stores frequently used instructions
   • how?

3. cores

   • how?
     • if you increase the number of cores then it will be faster and improve the performance of computer
   • what?
     • independant processors
       • cores run the fetch decode and execute cycle simultaneously
     • dual-core means 2 independent processors and quad-core means four independent processors

4. RAM

5. clock speed

   • what?
     • The number of fetch decode execute cycles a CPU can perform per second. This is measured in hertz (Hz).
     • 1Hz – 1 cycle per second 1KHz – 1000 (thousand) cycles per second 1MHz – 1,000,000 (million) cycles per second 1GHz – 1,000,000,000 (billion) cycles per second
   • how?
     • increasing the clock speed will increase the speed of the computer because there will be more cycles