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Tag: TechGeek World

Basic simplified Computer Boot process

Today would like to share little, simplified information on Computer Boot process. Before we work on our computers and on GUI (Graphical User Interface) and when the computer is powered on the following series of pre-programmed actions takes place

World of Compters

  1. The BIOS (Basic Input/Output System) does a power –on Self-Test (Called as POST) and initiates the boot process
  2. The Boot-strap process locates the mater Boot Record (MBR) of the primary boot device (HardDisk, cd, floppy disk, USB) as determined by the BIOS
  3. The MBR of the bootable device points the boot –strap to the Boot Sector of the active Partition.
  4. The Boot-strap then loads the OS boot loader in to the computers main memory (RAM). At this point the role of the BIOS is completes and control is transferred to the OS.
  5. The OS boot loader then loads its various components in to the computers main memory completing the boot sequence and providing the user its user interface.

Partitioning Your Harddisk With Fdisk

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Partitioning Your Harddisk With Fdisk

Partitioning involves creating logical units on your hard drive that are then addressed as different drive letters. Not only does it help to organize your data (program files on one drive, games on another, documents on another) but also to speed up your PC. This is so because the drive head has to move a lesser distance for accessing data within one partition. You can also have different file systems and OSs on the same hard drive.

Partitioning can be done using ‘fdisk’ in DOS/Windows 9x or ‘disk management’ in Windows 2000/ NT/XP. We will describe the procedure for fdisk, since disk management is GUI driven and the basics otherwise remain the same. While several other commercial packages like Partition Magic are available, these utilities (fdisk, computer management) are bundled with their respective OSs. You need a bootable floppy with fdisk.exe, format.com, and sys. com utilities. Before starting, decide how many partitions you want to create and their sizes. You can create one primary and one extended partition using the DOS fdisk. The extended partition can then have multiple logical partitions.


Boot your machine using the bootable disk, and do the following.

  • Run fdisk. The utility will show you a numbered menu from where you can create, view, or delete partitions.
  • The utility first asks you whether you want to enable large disk support. Type Y (for yes) and press enter if your hard-drive capacity is more than 4 GB. Large disk support creates a FAT32 partition, which can be greater than 2 GB.
  • Select the first option from fdisk menu to create a primary partition.
  • Specify the partition size in megabytes or percentage size when prompted for it similarly, create an extended partition. Extended partitions by themselves do not appear as drive letters. Instead, logical partitions must be created in them, which are then assigned drive letters Exit fdisk and reboot the computer Fdisk automatically assigns drive letters to all the partitions.
  • You’ll need to format each partition in order to use it. Use format.com for the same
  • Your hard drive is now ready for taking an OS.

Hope the information above helpful 🙂 🙂 🙂