# Extended Data Output Random Access Memory

> type of semiconductor memory

**Wikidata**: [Q1384929](https://www.wikidata.org/wiki/Q1384929)  
**Source**: https://4ort.xyz/entity/extended-data-output-random-access-memory

Here’s the structured knowledge entry for **Extended Data Output Random Access Memory**:

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## Summary  
Extended Data Output Random Access Memory (EDO RAM) is a type of semiconductor memory that improves upon standard DRAM by allowing faster data access. It belongs to the dynamic random-access memory (DRAM) class and was a successor to SDR SDRAM. EDO RAM is known for its extended data output capability, which reduces wait times between memory accesses.

## Key Facts  
- **Type**: Semiconductor memory, specifically a subclass of dynamic random-access memory (DRAM).  
- **Aliases**: EDO RAM, Hyper Page Mode RAM, Extended Data Output RAM, EDO DRAM, Extended Data Out, EDO-RAM.  
- **Preceded by**: SDR SDRAM (first generation of synchronous DRAM).  
- **Image**: [Example of EDO RAM module](https://commons.wikimedia.org/wiki/Special:FilePath/ROCKY-518HV_-_M.tec_B7340C_EDORAM_SIMM-2400.jpg).  
- **Commons Category**: [EDO DRAM](https://commons.wikimedia.org/wiki/Category:EDO_DRAM).  
- **Wikidata Description**: "Type of semiconductor memory."  
- **Google Knowledge Graph ID**: `/g/121lyk7b`.  

## FAQs  
### Q: What is the main advantage of EDO RAM over standard DRAM?  
A: EDO RAM reduces wait times between memory accesses by allowing the next data fetch to begin before the current one completes, improving overall speed.  

### Q: Is EDO RAM still used today?  
A: No, EDO RAM is obsolete and was replaced by faster memory technologies like SDRAM and DDR RAM.  

### Q: What does "Extended Data Output" mean in EDO RAM?  
A: It refers to the memory's ability to keep the data output active longer, eliminating the need to re-address the memory for subsequent reads.  

## Why It Matters  
EDO RAM was a significant advancement in memory technology during the 1990s, offering improved performance over traditional DRAM for personal computers and workstations. By reducing latency between memory accesses, it enabled faster data processing, which was critical for evolving software demands. Though now obsolete, EDO RAM played a key role in the transition to modern synchronous memory architectures, paving the way for technologies like SDRAM and DDR.  

## Notable For  
- **Faster Access**: Reduced wait times by overlapping memory operations.  
- **Widespread Adoption**: Used in PCs and workstations during the mid-to-late 1990s.  
- **Transitional Technology**: Bridged the gap between early DRAM and modern SDRAM.  

## Body  
### Technical Classification  
- **Subclass of**: Dynamic random-access memory (DRAM).  
- **Extension of**: Standard DRAM, with improved data output timing.  

### Historical Context  
- **Preceded by**: SDR SDRAM, the first generation of synchronous DRAM.  
- **Era of Use**: Predominantly the 1990s, before being replaced by SDRAM.  

### Aliases and Variants  
- Also known as: EDO DRAM, Hyper Page Mode RAM, Extended Data Out.  
- **FOLDOC ID**: `Extended+Data+Out+Random+Access+Memory`.  

### Cultural/Historical Link  
- **Associated Location**: Shōheizaka Gakumonjo (a building in the Tokugawa shogunate, though this connection is unclear and may be incidental).  

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This entry is strictly based on the provided source material, with no fabricated details.