Unit 1.1 System Architecture

Unit 1.1 System Architecture

1. Computer Components

   • CPU
     • Brains of the Computer - processes instructions
       • Ghz and Cores and Cache Memory Storage
   • Motherboard
     • Connects all components
       • No. of Slots and GB
   • GPU
     • Renders images - manages graphics for display
       • FLOPS
   • Memory
     • Short term Storage
       • transfer rates Hz and Storage capacity
   • Secondary Storage
     • Long term Storage
       • MB/s (transfer rate) and GB capacity
   • Network Card
     • Connects Device to Network
       • How many slots - how long it takes

2. Embedded Systems

   • An Embedded system is a system that has a CPU only used for a specific role.
   • Washing Machine
     • Timer
   • Digital Camera - Captures data/ Holds data/ Outputs Data

3. Von Neumann

   • ----->
   • Buses
     • Transfer between the CPU and sections

4. FDE cycle

   • Fetch
     • CPU "Fetches" data from Memory
   • Decode
     • Data is sent to the ALU for decoding
   • Execute
     • The decoded data is then executed to the screen

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