Computing 1.1 System Architecture

Computing 1.1 System Architecture

1. Processor

   • MHz
   • GHz
   • Hertz
   • Instruction
   • Embedded System
     • Software which is made up of hardware and software. Built into another device. It doesn't rely upon a OS. Used to provide specific pre defined functions.
   • Clock Speed
     • How fast the CPU can run (in cycles).
   • Cache
   • Core
     • The more cores the more executes that can be executed per second simultaneously.
     • Contains the ALU, Control Unit and registers
   • Used to fetch ,decode ,execute and repeat instructions.

2. Secondary Storage

   • Used to back up data needed for larger storage capacity

3. Virtual Memory

   • Uses a section of the computer storage as temporary ram.

4. ROM and RAM

   • RAM is volatile memory because it disappears if you reset it.
   • ROM is non-volatile because it stays when you reset .