1.1 System Architecture

1.1 System Architecture

1. Processor

   • it processes data, carries out instructions (executes them)

2. Embedded Systems

   • A Computer system that is made up of both Hardware and Software
   • often know as Firmware
   • used for Special Tasks
   • doesn't usually contain an Operating System
     • e.g. Dishwasher

3. Clock Speed

   • Measured in Hertz
     • MHz
     • GHz
       • 1 GHz executes 1 billion instructions per second
   • this affects the performance of the Processor

4. Cache

   • Processor

5. Number of Cores

   • Each processor has a core in which instructions are executed
   • Processors can be multi core
     • Dual core
     • Quad core
     • 8 core

6. CPU

   • central-processing-unit
   • to Fetch, Decode and Execute instructions