What is the boot loader?
Boot Loader is a very small piece of software code that runs during a computer boot sequence or other device. It copies the critical files and components of the operating system from storage device, such as the hard drive, to the main memory of the computer. The program then provides operating system control and stops until the next start. Boot loaders differ in complexity and are also used in devices such as smartphones, tablets and video game consoles.
The starting process in most personal computers (PCS) is a difficult event with multiple phases. The medium processing unit (CPU) inside most computers is unable to run programs directly from a storage device such as a hard disk, so the first piece of software that starts when the computer is turned on is loaded from a special microchip on the motherboard, a central computer board. This microchip may contain one of several different specialized programs, including the basic input output system (BIOS) or Unified ExtenSIBLE Firmware Interface (UEFI), which performs hardware testing and initialization before searching for hard drives and removable storage devices for starting loader. The code from the trigger loader is then transferred to the system memory that takes control of the computer and moves the starting sequence to the next step.
once below the boot loading control, it loads basic drivers and critical system files needed to start the operating system such as Microsoft Windows®, Linux or Mac OS X®. Boot loaders are often specific to the platform because drivers and system files differ very much between different systems. They can also run in the phases, with each phase of the program loading a more complex and powerful piece of software. On computers that have more than one operating system installed, the Boot Manager program allows users to select a system to introduce and overData control of the respective boot loader. After loading the operating system, the start -up loader will surrender to the system control and exit.
Smartphones, tablets, video game consoles, consumer electronics products and many other types of devices also use trigger loaders. If the device goes through the boot or loading period at the first time, there is a great chance that it uses a trigger loader. It is known that some enthusiasts hack or replace starting loaders of some devices to operate their own software or enable more advanced functions.