Indexing
Disk Structure
Logical Structure
- Disk is divided into concentric tracks
- Each track is divided into sectors
info
Image of the structure of a disk from GeekforGeeks
Block
- Intersection of track & sector
- Identified usign
(track_num, section_num)
- typically 512 bytes
Read / Write operations
- Performed in terms of blocks
Offset
- Number of bytes from the start of a block
- Used to identify a specific byte within a block