Computer Performance

Computer Performance

1. Cache

   • Cache memory is a chip-based computer component
   • In order to be closer to the processor cache memory needs to be much smaller than main memory which means it has less storage space
   • Cache memory is a temporary storage area that the computers processor can retrieve data from easily
   • If you had more cache there would be more room for instructions

2. Cores

   • Independent processors run the fetch decode execute cycle simultanously
   • The number of independent processors on the CPU
   • Dual core: 2 independent processors Quad core: 4 independent processors

3. RAM

   • Stores the programs, parts of the operating system and files currently being used
   • Is volatile - deletes when device is turned off
   • Short for Random Access Memory

4. Clock Speed

   • Clock speed is measured in hertz (Hz)
   • 1KHz = 1000 cycles per second
   • The number of fetch decode execute cycles a CPU can perform per second