FUNDAMENTALS OF COMPUTER

COMPUTER HARDWARE COMPONENTS FUNCTIONS

WHAT IS A HARD DRIVE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Choose the correct answer that describes the boot process.
A
Bootstrap loader locates the kernel, loads it into main memory and starts its execution.
B
A simple bootstrap loader fetches a more complex boot program from disk, which in turn loads the kernel in all system.
C
No need a special program to do this job of Bootstrap loader
D
Hardware know where the operating system resides and how to load it.
Explanation: 

Detailed explanation-1: -The correct answer is option 1. Key PointsBooting is a startup sequence that starts the operating system of a computer when it is turned on. A boot sequence is the initial set of operations that the computer performs when it is switched on.

Detailed explanation-2: -Six steps of the booting process are BIOS and Setup Program, The Power-On-Self-Test (POST), The Operating system Loads, System Configuration, System Utility Loads and Users Authentication.

Detailed explanation-3: -The entire operating system depends on the bootstrap program to work correctly as it loads the operating system. In the above image, the bootstrap program is a part of ROM which is the non-volatile memory. The operating system is loaded into the RAM by the bootstrap program after the start of the computer system.

Detailed explanation-4: -In computing, booting is the process of starting a computer as initiated via hardware such as a button or by a software command. After it is switched on, a computer’s central processing unit (CPU) has no software in its main memory, so some process must load software into memory before it can be executed.

Detailed explanation-5: -A Bootstrap Loader (BSL) is a small program which can be activated immediately after a microcontroller has been powered up, in order to load and execute another program in a well defined manner.

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