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The first instructor of bootstrap loader program of an operating system is stored in ____________.

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  1. RAM
  2. Hard Disk
  3. BIOS
  4. None

Answer (Detailed Solution Below)

Option 3 : BIOS
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The Correct Answer is BIOS.

Key Points

  • The first instructor of the bootstrap loader program of an operating system is stored in BIOS(Basic Input/Output System).
  • The bootstrap loader is a programme that resides on the EPROM, ROM or other non-volatile memory of the machine.
  • It is executed by the processor automatically when the device is turned on. To continue installing the computer's operating system, the bootstrap loader reads the boot sector of the hard drives.
  • The bootstrap loader first conducts the power-on self-test, also referred to as POST, when the machine is switched on or restarted.
  • The bootstrap loader loads the operating system for the machine into memory if the POST is successful and no problems are found.
  • It is then possible for the machine to access, load, and operate the operating system.
  • In computers that have an EFI (Extensible Firmware Interface), the bootstrap loader has been replaced and is now part of the EFI BIOS.

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