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.