Formatting process of hard disk drive high level low level formatting partitions table physical format partitioning primary secondary logical partitions table

The reason behind this is that Size of the disk in megabytes is obtained by dividing the size of the disk in Bytes twice by 1024. Thus it comes approximately 1985 Meg.

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In this way the general formula to calculate the capacity of disk in Millions of byte will be as follows:

Disk Capacity in millions of Byte =

(Cylinders X Heads X Sectors X Bytes per Sector)
__________________________________________M
1,000,000

And general formula for calculating the capacity of the disk in Megabyte will be given as follows:

Disk Capacity in Megabytes =

(Cylinders X Heads X Sectors X Bytes per Sector)
_________________________________________ Meg
1024 X 1024

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Chapter 3

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Data Recovery Book

Chapter 1	An Overview of Data Recovery
Chapter 2	Introduction of Hard Disks
Chapter 3	Logical Approach to Disks and OS
Chapter 4	Number Systems
Chapter 5	Introduction of C Programming
Chapter 6	Introduction to Computer Basics
Chapter 7	Necessary DOS Commands
Chapter 8	Disk-BIOS Functions and Interrupts Handling With C
Chapter 9	Handling Large Hard Disks
Chapter 10	Data Recovery From Corrupted Floppy
Chapter 11	Making Backups
Chapter 12	Reading and Modifying MBR with Programming
Chapter 13	Reading and Modifying DBR with Programming
Chapter 14	Programming for “Raw File” Recovery
Chapter 15	Programming for Data Wipers
Chapter 16	Developing more Utilities for Disks
Appendix	Glossary of Data Recovery Terms