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Timeline of OS

Timeline of OS. Why IETF. Timeline of the Universe. The first few seconds of the (Digital) Universe. Power On  POST  BIOS  OS  Apps Revised! Power On  POST  UEFI (EFI)  OS  Apps. Class assignment (Now!). The first few seconds: What happens first?

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Timeline of OS

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  1. Timeline of OS Why IETF

  2. Timeline of the Universe

  3. The first few seconds of the (Digital) Universe • Power On  POST  BIOS  OS  Apps • Revised! • Power On  POST  UEFI (EFI)  OS  Apps

  4. Class assignment (Now!) • The first few seconds: • What happens first? • CPU’s first instructions—Where/how stored? • What does BIOS/UEFI do? • When does BIOS/UEFI hand over to OS • Is the BIOS/UEFI completely inactive? • What does the OS boot-up do? • What are the first Apps in the OS to run? • What about running email and browsing before the OS boots? • How long does each stage take?

  5. Resources

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