Final answer:
Hard drives store data organized by tracks and sectors, using a binary code of 0's and 1's for low and high magnetization. The readout technology has progressed from magnetic induction to giant magnetoresistance due to advances in nanotechnology.
Step-by-step explanation:
The question refers to how data is organized on hard drives, which are types of magnetic media. Data on hard drives is organized by tracks and sectors. These hard drives utilize magnetization to represent the binary code data, where 0's and 1's correspond to low and high magnetization. The readout of this data has evolved from the principle of magnetic induction to employing the technology called giant magnetoresistance, a significant advancement made possible by nanotechnology. This technology detects changes in electrical resistance due to changes in a magnetic field and allows for the reading of the magnetically stored data.
Hard drives spin at high speeds allowing the read-write heads to access different parts of the disk, which is divided into tracks and sectors, to store or retrieve data quickly. Unlike older magnetic media like audio and video tapes which also use induction, modern hard drives have advanced towards digital information encoding technology based on the binary system.