computer performance

computer performance

1. RAM

   • random access memory
   • a form of computer memory that can be read and changed in any order
   • typically used to store working data and machine code.
   • A random-access memory device allows data items to be read or written in almost the same amount of time irrespective of the physical location of data inside the memory.

2. Cache

   • The memory in the CPU needed to store to frequently accessed data.
   • In computing, a cache is a hardware or software component that stores data so that future requests for that data can be served faster

3. cores

   • Independent processors in the CPU performing the fetch-decode-execute cycle simultaneously. they allow the CPU to multi-task.
   • dual core processor
     • processor with two cores.
   • A multi-core processor is a computer processor integrated circuit with two or more separate processing units
   • reads and executes program instructions, as if the computer had several processors

4. clock speed

   • measured in hertz
   • How many times the CPU can perform the fetch-decode-execute cycle per second