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10 Questions

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Storage Devices and Magnetic Media

Created by

@AppealingDidactic

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Questions and Answers

What is the primary purpose of a storage device?

To process data while the computer is on

To enhance the computer's performance

To hold data when the computer is turned off (correct)

To convert data into software applications

What material is often used to coat magnetic storage devices?

Ferromagnetic material (correct)

Plastic

Silicon

Aluminum

How are bits stored on magnetic storage devices?

By freezing the material

By drilling holes into the device

By magnetizing areas of a substance (correct)

By burning the surface material

What are tracks on a magnetic disk?

Concentric circles on the disk's surface Signup and view all the answers

How are data sectors organized on a magnetic disk?

In numbered portions of tracks Signup and view all the answers

What must happen before a magnetic disk can be used for data storage?

The disk must be formatted Signup and view all the answers

What is represented by the direction of magnetization on a magnetic storage medium?

Bits, represented as 0s and 1s Signup and view all the answers

What are floppy disks known for?

Their flexibility and round shape Signup and view all the answers

What is a bit in the context of magnetic storage devices?

The smallest unit of data Signup and view all the answers

What occurs when data is read from a magnetic disk?

The head detects the magnetized areas Signup and view all the answers

Study Notes

Categorizing Storage Devices

Storage devices hold data, transferring it between computers.
Reading and recording data can be done in several ways.
Different technologies are used for storage, including CDs, DVDs, and hard drives.

Magnetic Storage Devices

Magnetic storage uses materials that can be magnetized/demagnetized to store data.
Hard drives use magnetic platters, and read/write heads, storing data magnetically.
Data is organized in tracks and sectors.

How Data Is Stored on a Disk

Magnets can be used to store data.
To read data from magnetic media, the head passes over the surface, sensing the changes in polarity.

How Data Is Organized on a Magnetic Disk

Before a computer can use a magnetic disk, it's formatted.
Data is organized into tracks and sectors to facilitate retrieval and storage.

Tracks and Sectors

A hard drive's surface is divided into tracks & sectors.
Tracks are concentric circles.
Sectors are segments within tracks.
These are used to access specific data from the disk.

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Description

This quiz covers the fundamentals of storage devices, focusing on magnetic storage and how data is organized on disks. Learn about the different technologies involved, such as hard drives and the structure of tracks and sectors used for data retrieval.