D1.1  Introduction to Storage Device, Hard disk and models, converter used
D1.2  Hard Disk Data recovery common problems, with fault

1. LOGICAL PROBLEMS (disk detected in BIOS are mainly logical problems)
2. PHYSICAL PROBLEMS (disk not detected in BIOS are main physical problems)
   1. ELECTRONICAL FAILURE PROBLEMS
   2. MECHANICAL FAILURE PROBLEMS

3. FIRMWARE PROBLEMS

D1.3  Understanding hard disk structure (platter, head, sector, cluster, track, cylinder,)
D1.4  Internal Parts of Hard Disk Demo Parts Identify SATA 3.5 Drive 1tb St31000333as
D1.5  Understand how data stored in hard disk & Microsoft files structure (FAT, NTFS, MBR)
D1.6  Working concept of Format, Partition & computer booting process,
D1.7  Data recovery Software used for different problems, steps with features

• Deleted partition recovery
• Formatted data recovery
• MBR repair
• Deleted files recovery
• Different software used idea

D1.8  Pen drive and Memory card logically data recovery concept
Troubleshooting chart of logical data recovery