computer performance

computer performance

1. cores

   • what
     • individual processors
     • quad core - 4
     • dual core - 2
     • allows the device to run applications simultanesously
   • how
     • improves multitasking
     • improves performance by allowing multiple applications to run at the same time
   • why
     • good for multitasking
     • minimum specification for software not being met

2. cache

   • the CPU cache is a piece of hardware which reduces the access time to the data in the memory by keeping some part of the frequency
   • why is the cache updated Because computers can access data from RAM much faster than from a disk, disk caching can significantly increase performance
   • he more cache there is, the more data can be stored closer to the CPU. Cache memory is beneficial because: Cache memory holds frequently used instructions/data which the processor may require next and it is faster access memory than RAM, since it is on the same chip as the processor.

3. clock speed

   • what
     • cycles per second
       • fetch decode-executed
         • instructions
   • why
     • minimum specification for software not being met
     • devices may be slow at loading programs/applications and files
   • how?
     • programs will load faster as more instructions can be processed per second