# magnetic storage

> storage of data on a magnetized medium

**Wikidata**: [Q1364527](https://www.wikidata.org/wiki/Q1364527)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Magnetic_storage)  
**Source**: https://4ort.xyz/entity/magnetic-storage

## Summary
Magnetic storage is a data storage technology that records digital information by magnetizing a medium, such as a disk or tape. It was first developed in 1878 and remains a foundational method for computer data storage, known for its durability and non-volatility. Magnetic storage includes formats like hard disks, floppy disks, and magnetic cards, each with varying capacities and uses.

## Key Facts
- **Inception**: Magnetic storage was first developed in 1878.
- **Medium**: Data is stored by magnetizing a medium, such as a disk or tape.
- **Non-volatility**: Magnetic storage retains data even when power is off.
- **Types**: Includes hard disks, floppy disks, and magnetic storage cards.
- **Applications**: Used in computers, calculators, and archival storage.
- **Aliases**: Also known as magnetic recording, magnetic data storage, and magnetic media.
- **Related Technologies**: Includes auxiliary memory, magnetic disk, and random-access memory.
- **Schematic**: A diagram of perpendicular recording is available on Wikimedia Commons.

## FAQs
### Q: What is the difference between magnetic storage and other storage technologies?
A: Magnetic storage differs from other technologies like optical storage (e.g., CDs) by using magnetization to encode data, making it more durable and resistant to physical damage. It also differs from solid-state storage (e.g., SSDs) by being non-volatile and slower to access.

### Q: How does magnetic storage work?
A: Magnetic storage works by magnetizing a medium, such as a disk or tape, to represent binary data (0s and 1s). A read-write head detects or alters the magnetic orientation to read or write data.

### Q: What are the most common types of magnetic storage?
A: Common types include hard disks (used in computers), floppy disks (older removable media), and magnetic storage cards (used in calculators). Hard disks are the most widely used today.

### Q: Is magnetic storage still relevant in modern computing?
A: Yes, magnetic storage remains relevant for large-scale data storage, such as in hard drives and archival systems, due to its high capacity and cost-effectiveness.

### Q: What are the limitations of magnetic storage?
A: Limitations include slower access times compared to solid-state storage, susceptibility to physical damage, and potential data loss from magnetic decay over time.

## Why It Matters
Magnetic storage is a cornerstone of modern computing and data preservation. It was first developed in 1878 and has since evolved into various forms, including hard disks, floppy disks, and magnetic cards. Magnetic storage is non-volatile, meaning it retains data even when power is off, making it essential for long-term data retention. It is widely used in computers, calculators, and archival storage due to its durability and high capacity. The technology has been refined over time, with advancements in recording density and reliability. Despite the rise of solid-state storage, magnetic storage remains crucial for large-scale data storage and archival purposes. Its development has significantly impacted the field of computer storage media, providing a reliable and cost-effective solution for data storage needs.

## Notable For
- **Durability**: Magnetic storage is known for its durability and resistance to physical damage.
- **Non-volatility**: It retains data even when power is off, making it ideal for archival storage.
- **High Capacity**: Magnetic storage can store large amounts of data, making it suitable for large-scale applications.
- **Historical Significance**: It was one of the first forms of computer data storage, developed in 1878.
- **Versatility**: Used in various devices, from computers to calculators, demonstrating its broad applicability.

## Body
### Overview
Magnetic storage is a method of storing digital data by magnetizing a medium, such as a disk or tape. It was first developed in 1878 and has since become a foundational technology in computer storage. Magnetic storage is non-volatile, meaning it retains data even when power is off, making it essential for long-term data retention.

### Types of Magnetic Storage
- **Hard Disks**: Used in computers for large-scale data storage.
- **Floppy Disks**: Older removable media, developed in 1964.
- **Magnetic Storage Cards**: Used in calculators, developed in 1974.
- **64DD Disk**: A proprietary media format with limited use.

### Applications
Magnetic storage is used in various applications, including computers, calculators, and archival storage. It is known for its durability and high capacity, making it suitable for large-scale data storage.

### Related Technologies
Magnetic storage is related to other technologies such as auxiliary memory, magnetic disk, and random-access memory. These technologies work together to provide comprehensive data storage solutions.

### Schematics and Diagrams
A diagram of perpendicular recording is available on Wikimedia Commons, providing a visual representation of the technology.

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "Magnetic Storage",
  "description": "Storage of data on a magnetized medium",
  "sameAs": [
    "https://www.wikidata.org/wiki/Q10210943",
    "https://en.wikipedia.org/wiki/Magnetic_storage"
  ],
  "additionalType": "DataStorageTechnology"
}

## References

1. [Source](https://github.com/JohnMarkOckerbloom/ftl/blob/master/data/wikimap)
2. Freebase Data Dumps. 2013
3. YSO-Wikidata mapping project. 2023
4. Quora
5. National Library of Israel
6. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)