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Questions and Answers
What is the internal structure of a magnetic disk?
What is the internal structure of a magnetic disk?
- Metal plates coated with magnetic material fixed to a spindle (correct)
- A single metal plate with magnetic material attached to a spindle
- A set of magnetic heads mounted on arms
- Metal plates arranged in a circular pattern
What is a sector on a magnetic disk?
What is a sector on a magnetic disk?
- A group of tracks on all surfaces
- A group of bytes forming a circle on the disk surface
- Concentric rings on the disk surface
- The smallest unit of data that can be read or written (correct)
What is the purpose of an inter-Track gap on a disk surface?
What is the purpose of an inter-Track gap on a disk surface?
- To avoid data interference between neighboring tracks (correct)
- To improve the durability of the disk
- To enhance the disk rotation speed
- To increase the data storage capacity
Why are inter-Sector gaps important on a disk surface?
Why are inter-Sector gaps important on a disk surface?
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What is the function of a cylinder on a magnetic disk?
What is the function of a cylinder on a magnetic disk?
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Study Notes
Magnetic Disk Structure
- A magnetic disk is composed of concentric circles called tracks, divided into smaller areas called sectors, and grouped into cylinders.
Sectors on a Magnetic Disk
- A sector is the smallest unit of data storage on a magnetic disk, typically holding 512 bytes of data.
- Sectors are divided into three parts: ID, data, and ECC (Error Correcting Code).
Inter-Track Gaps
- Inter-Track gaps are narrow blank areas between tracks on a disk surface, ensuring that the read/write head can accurately navigate between tracks.
Inter-Sector Gaps
- Inter-Sector gaps are small blank areas between sectors on a track, allowing for efficient data retrieval and storage.
Cylinders on a Magnetic Disk
- A cylinder is a collection of tracks located at the same distance from the center of the disk, spanning across multiple platters (in multi-platter disks).
- Cylinders allow for efficient data access, as the read/write head only needs to move vertically to access different tracks within the same cylinder.
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Description
Test your knowledge of disk structure with this quiz. Learn about the internal structure of magnetic disks, including the arrangement of plates, magnetic material, and heads. Explore the concepts of tracks, sectors, and cylinders to deepen your understanding of disk technology.
