# file storage

> type of storage

**Wikidata**: [Q124216744](https://www.wikidata.org/wiki/Q124216744)  
**Source**: https://4ort.xyz/entity/file-storage

## Summary
File storage is a type of auxiliary memory, which is non-volatile memory not directly accessible by the CPU, instead being accessed via input/output channels. It provides persistent data retention even when powered off.

## Key Facts
- File storage is a subclass of auxiliary memory.
- Auxiliary memory is defined as non-volatile memory not directly accessible by the CPU.
- Access to auxiliary memory, including file storage, occurs via input/output channels.
- File storage provides persistent data retention, meaning data remains stored without power.
- Arweave is a decentralized storage network related to file storage concepts.
- Arweave was founded in 2018.

## FAQs
### Q: What is file storage?
A: File storage is a type of auxiliary memory, which is non-volatile memory accessed via input/output channels rather than directly by the CPU. It allows data to be stored persistently.

### Q: How does file storage differ from RAM?
A: Unlike RAM (random access memory), which is volatile and directly accessible by the CPU, file storage is non-volatile and accessed via input/output channels. Data in file storage persists without power.

### Q: Why is file storage important?
A: File storage is crucial because it provides persistent data retention, allowing users and systems to save information long-term. This is essential for operating systems, applications, and user data.

### Q: What are examples of file storage?
A: Examples include hard disk drives (HDDs), solid-state drives (SSDs), USB flash drives, optical discs (CDs, DVDs), and network-attached storage (NAS), all falling under the auxiliary memory category.

### Q: What is decentralized file storage?
A: Decentralized file storage, like Arweave, distributes data across a network of computers instead of relying on a central server, aiming for permanence and censorship resistance. Arweave, founded in 2018, is an example of this approach.

## Why It Matters
File storage is fundamental to modern computing because it solves the critical problem of data persistence. Unlike volatile memory (RAM), which loses data when power is off, file storage retains information indefinitely. This enables the long-term storage of operating systems, applications, documents, photos, videos, and vast datasets essential for personal, business, and scientific use. Without reliable file storage, digital workflows would be impossible, and the accumulation and preservation of knowledge over time would be severely hindered. It underpins the digital economy, cloud services, and the internet itself by providing the durable layer where data resides.

## Notable For
- **Non-Volatile Nature:** Retains data without requiring continuous power supply, unlike volatile memory.
- **Classification as Auxiliary Memory:** Explicitly categorized under auxiliary memory, distinct from primary memory (RAM).
- **CPU Access Limitation:** Not directly accessible by the CPU; requires input/output channels for access.
- **Foundation for Data Persistence:** Provides the essential capability for long-term data retention in digital systems.
- **Relationship to Decentralized Models:** Associated with emerging decentralized storage networks like Arweave (founded 2018).

## Body
### Classification
- File storage is a type of storage.
- It is a subclass of auxiliary memory.

### Characteristics
- Auxiliary memory, including file storage, is non-volatile.
- Non-volatile memory retains data even when powered off.
- Auxiliary memory is not directly accessible by the CPU.
- Access to auxiliary memory occurs via input/output channels.

### Relationships
- Arweave is a decentralized storage network related to file storage concepts.
- Arweave was founded in 2018.

### Examples
- While not explicitly listed in the source, common examples of file storage devices include hard disk drives (HDDs), solid-state drives (SSDs), USB flash drives, optical discs (CDs, DVDs), and network-attached storage (NAS), all falling under the auxiliary memory classification.