The problem is changing this bootstrap code requires changing the ROM and hardware chips. Since ROM is read-only memory, it cannot be infected by a computer virus. This location is convenient because ROM needs no initialization, and it is at a fixed location that the processor can start executing when powered up or reset. The bootstrap is stored in read-only memory (ROM). And last jumps to the initial address to begin the operating-system execution.The bootstrap program finds the operating system kernel on disk to do its job and then loads that kernel into memory.First, initializes the CPU registers, device controllers, main memory, and then starts the operating system.This initial program is known as the bootstrap program, and it must initialize all aspects of the system, such as: When a computer starts running or reboots to get an instance, it needs an initial program to run. A boot block is a region of a hard disk, floppy disk, optical disc, or other data storage device that contains machine code to be loaded into random-access memory (RAM) by a computer system's built-in firmware.Īnd a bad block is a sector on a computer's disk drive or a flash memory that cannot be used due to permanent damage, such as physical damage to the disk surface or failed flash memory transistors. The operating system is responsible for several other features of disk management, such as disk initialization, boot block or booting from disk, and bad block. Next → ← prev Boot Block and Bad Block in Operating System
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