Systems Architecture

Systems Architecture

1. System performance is affected by..

   • Clock Speed
     • Number of instructions executed per second
   • Cache
     • Intermediary between the processor and the main memory
     • very fast but very small
   • Cores
     • Dual Cores
       • Dual core can execute twice as much instructions
     • Quad Cores
     • 8 Cores

2. Key words

   • Processor
   • Hertz
   • MHz
   • GHz
   • Execute
   • Instruction
   • Embedded System
   • Clock speed
   • Cache
   • Core
   • Fetch

3. Moore's Law

   • It is the observation that the number of transistors in a dense integrated circuit doubles approximately every two years.
   • It is important as it allows all ,named of electronic devices to conduct real world tasks.
   • Gordon Moore is the author of Moore's Law

4. Embedded system

   • Built into another device

5. CPU

   • fetch,decode and execute instructions

6. Registers

   • a component to hold short term memory
     • MDR is an example of register

7. Processor with a faster clock speed

   • More instructions carried out

8. a processor with more cores

   • more instructions carried out simultaneously

9. processor with a bigger cache

   • more space for user data / instructions