# resistive random-access memory

> non-volatile memory type

**Wikidata**: [Q1143830](https://www.wikidata.org/wiki/Q1143830)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Resistive_random-access_memory)  
**Source**: https://4ort.xyz/entity/resistive-random-access-memory

## Summary
Resistive random-access memory (RRAM or ReRAM) is a non-volatile memory type that retains data even when power is turned off, unlike volatile memory technologies like DRAM and SRAM. It operates by changing the electrical resistance of materials to store information. RRAM is designed to combine the speed of RAM with the persistence of storage technologies like flash memory.

## Key Facts
- **Non-volatile**: Retains data without power, unlike DRAM and SRAM.
- **Aliases**: Known as RRAM, ReRAM, resistive RAM, 抵抗変化メモリ (Japanese), and 저항 메모리 (Korean).
- **Classification**: Subclass of non-volatile random-access memory.
- **Wikipedia Coverage**: Featured in 10 language editions, including English, Japanese, and Korean.
- **Identifiers**: BabelNet ID (03765219n), Freebase ID (/m/027j0hx), and Microsoft Academic ID (182019814, discontinued).
- **Encyclopedia Entries**: Listed in the *Encyclopedia of China* (Third Edition) under IDs 32715 and 32712.

## FAQs
### Q: What makes resistive random-access memory different from DRAM and SRAM?
A: RRAM is non-volatile, meaning it retains data without power, while DRAM and SRAM lose data when power is interrupted.

### Q: Is resistive RAM the same as ReRAM?
A: Yes, ReRAM is an alternate name for resistive random-access memory (RRAM).

### Q: Where is resistive RAM documented?
A: RRAM is covered in multiple Wikipedia editions and academic resources, including the *Encyclopedia of China*.

## Why It Matters
Resistive random-access memory addresses a critical limitation of traditional RAM by enabling data persistence without power. This characteristic makes it valuable for applications requiring rapid access to stored data, such as in embedded systems, IoT devices, and next-generation computing architectures. RRAM’s potential for high density, low power consumption, and scalability positions it as a candidate for replacing or complementing existing memory technologies like flash memory. Its development reflects the broader industry push for energy-efficient, high-capacity storage solutions that bridge the gap between memory and storage hierarchies.

## Notable For
- **Multi-Language Recognition**: Documented in 10 Wikipedia editions, reflecting global research interest.
- **Cultural and Academic Documentation**: Included in the *Encyclopedia of China*, highlighting its relevance in technical literature.
- **Alias Diversity**: Recognized by multiple names (RRAM, ReRAM) across industries and regions.
- **Non-Volatile Innovation**: Represents a key advancement in memory technology by eliminating volatility trade-offs.

## Body
### Definition and Classification
Resistive random-access memory (RRAM) is a non-volatile memory technology that stores data by altering the electrical resistance of a material. It is classified under non-volatile random-access memory, distinguishing it from volatile counterparts like DRAM and SRAM.

### Key Characteristics
- **Non-Volatility**: Data retention without power.
- **Operating Mechanism**: Relies on resistive switching effects in materials.
- **Aliases**: ReRAM, resistive RAM, and language-specific terms (e.g., Japanese 抵抗変化メモリ).

### Technical and Cultural Context
- **Academic and Industry Recognition**: Cited in academic databases (e.g., discontinued Microsoft Academic ID 182019814) and regional encyclopedias (*Encyclopedia of China*).
- **Global Documentation**: Wikipedia coverage spans 10 languages, including English, German, Spanish, French, Italian, Dutch, Japanese, and Korean.
- **Identifier Standards**: Assigned unique identifiers in BabelNet (03765219n) and Freebase (/m/027j0hx).

## References

1. Freebase Data Dumps. 2013
2. BabelNet
3. Quora
4. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)