1.1 System Architecture

1.1 System Architecture

1. Processor

   • Processes Data, Carries out instructions and Clock speed measured in Hertz

2. MHz

   • 1 million instructions executed per second

3. GHz

   • 1 billion instructions executed per second

4. Hertz

   • Number of cycles per second

5. Embedded System

   • A computer within another device (Firmware)

6. Cache

   • Very fast
   • Small amount of memory
   • Increasing the size
     • Reduces number of memory to disk transfer
     • Speeds up processing of instructions

7. Core

   • Where instructions are executed.
   • Increasing the number of cores will increase the number of instructions per second

8. Clock speed

   • The number of instructions per second.
   • Doubling this will increase the number of instructions per second.

9. Execute

   • Carries out the instructions

10. Instructions

    • Information on how to operate, perform or maintain computer software/hardware