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Basics Of Os

24/04/2022 13:45

Parent: Operating System Tags: #OS

Basics of OS(Computer System Operation):

  • Bootstrap program is the first program executed when the power is on.
  • It is stored in ROM.
  • It must locate and load OS Kernel.
  • Hardware Interrupts - Interrupts to CPU for urgent execution
  • Software Interrupts - System Calls to CPU
  • Every device has a controller (Device Driver)
  • CPU and device drivers compete for RAM, memory controller synchronises all processes from CPU and device drivers.

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