what is boot strap loader

Introduction to Boot Strap LoaderIn computer systems, the boot strap loader is an essential software component that helps initialize and launch the operating system. The boot strap loader, also known as the bootstrap loader or initial program loader (IPL), is responsible for loading the operating system kernel and starting the computer's hardware. In this article, we will explore the various aspects of boot strap loader and its significance in the startup process.What is Boot Strap Loader?The boot strap loader is a program that is executed when the computer starts up. It is stored in the non-volatile memory such as ROM or flash memory, which means that it remains persistent even after the computer is turned off. Its primary function is to initiate the booting sequence, which is the process by which the computer starts up and loads its operating system. The boot strap loader is usually a small program that contains just enough code to perform its job of loading the operating system kernel into memory.The Importance of Boot Strap LoaderThe boot strap loader is an essential component of the startup process since it is responsible for launching the operating system. Without the boot strap loader, the computer would not be able to load its operating system and become operational. The boot strap loader performs several critical functions to initiate the computer's startup process, such as initializing the computer's memory, configuring the system hardware, and loading the operating system kernel.The Booting SequenceThe booting sequence is the process by which the computer starts up and loads its operating system. The booting sequence involves several stages, starting with the power-on self-test (POST), which is performed by the computer's BIOS (Basic Input/Output System) firmware. The POST checks that the computer's hardware is functioning correctly and then passes control to the boot strap loader. The boot strap loader then proceeds to load the operating system kernel into memory and transfer control to the kernel, which launches the operating system.Boot Strap Loader vs. Boot ManagerThe boot strap loader and boot manager are two different concepts. The boot strap loader is responsible for loading the operating system kernel, while the boot manager is responsible for managing multiple operating systems on the computer. A boot manager allows the user to select which operating system to load when the computer starts up. On the other hand, the boot strap loader automatically loads the default operating system specified in the computer's configuration.ConclusionIn conclusion, the boot strap loader is a vital component of the computer's startup process. Without the boot strap loader, the computer would not be able to load its operating system and become operational. The boot strap loader initiates the booting sequence, loads the operating system kernel into memory, and starts the computer's hardware. Its importance cannot be overstated, and it is essential to have a proper understanding of its functioning to understand the overall functionality of the computer.