EVERYDAY SCIENCE

Detailed explanation-1: -BIOS. BIOS stands for Basic Input Output System. The BIOS is stored in the ROM. It contains all the basic code for controlling your computer hardware (such as keyboards, mice, monitors and hard drives).

Detailed explanation-2: -ROM is a type of memory circuitry that holds the computer’s startup routine. The ROM BIOS tells the computer how to access the hard disk, find the operating system, and load it into RAM.

Detailed explanation-3: -Booting is basically the process of starting the computer. When the CPU is first switched on it has nothing inside the Memory. In order to start the Computer, load the Operating System into the Main Memory and then Computer is ready to take commands from the User.

Detailed explanation-4: -The process of loading an operating system into a computer’s main memory from disk is called Bootstrapping. The term “bootstrap” refers to the process of starting a computer by loading a much smaller initial program before the intended software is loaded (which is usually an operating system).

Detailed explanation-5: -A computer’s basic input/output system (BIOS) is a program that’s stored in nonvolatile memory such as read-only memory (ROM) or flash memory, making it firmware. The BIOS (sometimes called ROM BIOS) is always the first program that executes when a computer is powered up.