1.1 Systems Architecture | Version 2

1.1 Systems Architecture | Version 2

1. CPU

   • What is it made up of?
     • CU - Control Unit
       • What is the CU?
         • It controls the flow of data through the system
         • It controls & moniters communications between the hardware.
         • It controls the input & output of data.
     • There is also cache.
       • A tiny block of memory in the processor.
   • CPU - Central Processing Unit
   • AKA. Processor

2. What affects the preformance of the CPU?

   • Cores
     • What are the effects of using more cores?
       • More instructions are carried out simultaneously.
       • Allows more instructions to be processed at the same time.
       • Allows more programs to be run at the same time.
   • Cache Size
     • What are the effects of having more cache?
       • More space for frequently used instructions.
       • More storage so you can access items faster.
       • And so instructions a fetched faster.

3. Embedded Systems

   • What is the purpose of embedded system?
     • To provide specific functions which is cheaper than providing a personal computer system.
   • What are some examples of embedded systems?
     • Sat Nav
     • MP3 Player
     • Washing Machine

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