computer performance

computer performance

1. RAM

   • What
     • RAM is volatile, meaning that the data is not stored when the computer system is switched off.
   • how
     • Stores the programs, parts of the operating system and the files currently being used.
   • why
     • We use RAM so that we can use data quickly and we can have much more storage.

2. clock speed

   • what
     • the operating speed of a computer or its microprocessor, expressed in cycles per second
   • how
   • Why
     • The clock speed - also known as clock rate - indicates how fast the CPU can run. This is measured in megahertz (MHz) or gigahertz (gHz) and corresponds with how many instruction cycles the CPU can deal with in a second.

3. Cache

   • What
     • Cache is a type of memory it is always checked first if the CPU needs something from it.
   • why
     • Cache memory is an extremely fast memory type that acts as a buffer between RAM and the CPU. It holds frequently requested data and instructions so that they are immediately available to the CPU when needed.
   • how
     • Cache memory is used to reduce the average time to access data from the Main memory.