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What would the bootstrap program need to do?
The bootstrap program should automatically load the operating system after a power outage or reset. The operating system would then load the remaining software.
Which Software loads the operating system into memory before execution?
bootstrap
Why does an operating system reside in low memory?
This is not always true, it depends on the operating system and the bootstrap process.
Which component of the boot sequence analyzes hardware devices before loading the operating system?
bootstrap loader
What is bootstap process?
The bootstrap process is the sequence of actions that a computer system goes through when it is first turned on. It involves loading the operating system into memory and initializing the hardware components to prepare the system for use. The bootstrap process typically includes hardware diagnostics, configuration checks, and loading the necessary software components.
Why BIOS is used in booting the computer?
The BIOS contains two things: the low level bootstrap code, and simple I/O drivers for the devices built into the motherboard. Without the low level bootstrap code to initialize the CPU and system hardware there would be no way of loading the high level bootstrap code from disk that will load the OS. The simple I/O drivers will be used by the low level bootstrap code, the high level bootstrap code, and also initially by the OS (until it installs its own I/O drivers).
Who loads bootstrap program in memory and when?
When the computer start all the essential files, to start the operating system load from disk to the memory.Basically the bootstrap program is loaded into the read only memory(ROM) which enables while the computer start.
Why do you need to use bootstrap What is the advantage and disadvantage of using bootstrap?
Without a bootstrap it would be impossible to boot a computer system but that's not really an advantage, it's a fundamental aspect of any computer system. The term "bootstrap" derives from the phrase: "to lift oneself up by one's own bootstraps". This is clearly an impossibility, not unlike standing in a carrier bag and then trying to lift the bag with you still in it; it can't be done. However, as we'll see, it is an apt phrase when it comes to initialising a computer system and provides the origin of terminology such as "boot process" and "bootup". On any computer system, most software is loaded and executed by other software that has previously been loaded and executed. For instance, the BIOS (Basic Input/Output System) performs some essential checks upon the system hardware before loading and executing the boot loader which loads and executes a chosen (or default) operating system, at which point the user can logon and subsequently load and execute their own choice of programs. But given that we require a program or operating system in order to load and execute other programs, this presents us with a paradox during initial bootup. How does the very first program load and execute if there is no program present to load and execute it? The answer lies in the bootstrap. The bootstrap is a machine-code program that is permanently written to a read-only memory chip (ROM). Being read-only, the bootstrap cannot be changed other than by replacing the chip itself. Unlike programs stored in RAM (Random Access Memory), ROM programs do not require power to maintain state. Thus when power is restored to the system, the bootstrap is already in memory and can be executed automatically, at which point the bootstrap takes control of the system. Typically, a bootstrap will simply locate, load and execute the system's BIOS program which takes care of the POST (Power-On Self-Test) and prepares the system to load and execute the boot loader which takes care of the bulk of the boot process until the system is ready to load and execute an operating system, at which point the system has effectively lifted itself up by its own bootstraps.
How could a system be designed to allow a choice of operating system to boot from. what would the bootstrap program need to do?
On most computer systems, a small piece of code known as the bootstrap program or bootstrap loader locates the kernel loads it into main memory and startsits execution. Some computer systems, such as PCs, use a two-step process in which a simple bootstrap loader fetches a more complex boot program from disk, which in turn loads the kernel. The bootstrap program can perform a variety of tasks. Usually, one task is to run diagnostics to determine with the booting steps. It can also initialize all aspects of the system, from CPU registers to device controllers and the contents of main memory. Sooner or later, it starts the operating system.
What application is responsible for locating and loading the kernel of the operating system so that the operating system may be loaded and can take over control of the hardware?
The bootstrap loader
Why is starting up a computer called booting?
Boot is short for "Bootstrap". It's from the aphorism to "pull one's self up by one's bootstraps." A bootstrap load was the way early computer manufacturers described the process of a computer loading its operating system.
What would the bootstrap do?
"Bootstrapping" is long for "booting", which is simply a technique by which a simple computer program activates a more complicated system of programs.
