computer performance

computer performance

1. Cores

   • What
     • The number of independent processors in the CPU which run the fetch decode execute cycle simultaneously.
       • for example if you have 4 cores they will all be doing a seperate task but at the same time.
   • How
     • Increasing the numbers of cores increases the performance
       • For example if you have 4 cores and you then update to 8 cores the performance will be faster

2. RAM

   • what
     • RAM is RandomAccessMemory
   • How

3. Clock Speed

   • How
     • Increasing the clock speed will increase the speed of the computer because there will be more cycles.
       • for example
   • What
     • The number of fetch decode execute cycles a CPU can perform per second. This is measured in hertz (Hz).
       • foe example 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

4. Catche

   • what
     • cacche memory is a small amount of memory whitch is either inside the CPU or closer to the CPU than RAM
     • Cache memory is faster and more expensive than RAM
     • cache memory stores frequently-used instructions
   • how