COMPUTER FUNDAMENTALS

Detailed explanation-1: -The boot ROM is a type of ROM that is used for booting a computer system. There are two types: a mask boot ROM that cannot be changed afterwards and a boot EEPROM, which can contain an UEFI implementation.

Detailed explanation-2: -ROM contains the programming that allows a computer to start up or regenerate each time it is turned on. ROM also performs large input/output (I/O) tasks and protects programs or software instructions. Once data is written on a ROM chip, it cannot be removed.

Detailed explanation-3: -The boot program is a simple code that is stored in ROM memory. ROM memory is used to store read only files. When the computer is starting up / restarting / booting specific set of instructions are loaded, those instructions are stored in ROM. The boot code is the very first code to get executed on booting.

Detailed explanation-4: -The CPU starts and fetches instructions into RAM from the BIOS, which is stored in the ROM. The BIOS starts the monitor and keyboard, and does some basic checks to make sure the computer is working properly. For example, it will look for the RAM. The BIOS then starts the boot sequence.