Operating System Management

• the computer system needs operating system which functions as interface between computer hardware and user. OS provides operational convenience.

• the booting process is a set of operations initiated by the computer system. the booting process starts when the system is powered on an initiates loading the operating system into the system memory(RAM). the booting process ends when operating system completely loaded into the RAM and operational.

• the CPU activates the BIOS which initiates the system booting process.
• the BIOS jumps(Goto) to MBR and loads the primary boot loader(Stage-1) and transfer the exectuion control.
• the primary boot loader(stage-1) locates the loads the secondary boot loader program(stage 2)
• the secondary boot loader(stage-2) loads the operating system components and kernel