1.3.3 Magnetic Storage

Question 1

How Magnetic Storage Works

Answer 1

Storing a bit
Accessing data
Reliability

Question 2

Storing a bit in Magnetic Storage

Answer 2

The value of each bit of data (0 or 1) is represented as a positively or negatively charged magnetic particle.

These particles are part of a magnetic disk called the platter.

Question 3

Accessing data in Magnetic Storage

Answer 3

Data could be stored anywhere on the disk, and so to read/write data we first need to find the location on the disk.

A magnetic read/write head is used to access the data while the platter spins.