## Summary
Redis (Remote Dictionary Server) is an open-source, in-memory data structure store designed for high performance. It is utilized across various backend architectural roles, including database management, caching, message brokering, and streaming engine operations.
## Key findings
* **Core Architecture**: Redis stores data in RAM rather than on disk, which enables sub-millisecond latency (https://redis.io/tutorials/what-is-redis/, https://www.geeksforgeeks.org/system-design/introduction-to-redis-server/).
* **Primary Use Cases**: It functions as a database, cache, message broker, and streaming engine (https://redis.io/tutorials/what-is-redis/, https://www.geeksforgeeks.org/system-design/introduction-to-redis-server/).
* **Data Structures**: The system supports various data structures, specifically including Strings and Hashes (https://www.geeksforgeeks.org/system-design/introduction-to-redis-server/).
## Sources
* https://redis.io/ - Used to define Redis as an open-source, in-memory data structure store.
* https://redis.io/tutorials/what-is-redis/ - Used to identify use cases (cache, broker, etc.) and latency characteristics.
* https://www.geeksforgeeks.org/system-design/introduction-to-redis-server/ - Used to confirm use cases, RAM-based architecture, and specific data structures.
## Confidence
0.95
## Open questions
* What are the remaining supported data structures beyond Strings and Hashes?
* What are the specific trade-offs or limitations of using an in-memory store compared to disk-based databases regarding data persistence and capacity?
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Findings:
- Redis (Remote Dictionary Server) is an open-source, in-memory data structure store. (https://redis.io/
Findings:
* Redis (REmote DIctionary Server) is an open-source, in-memory data structure store used as a database, cache, message broker, and streaming engine. (https://redis.io/tutorials/what-is-redis/, https://www.geeksforgeeks.org/system-design/introduction-to-redis-server/)
* It delivers sub-millisecond latency by storing data in RAM instead of disk. (https://redis.io/tutorials/what-is-redis/, https://www.geeksforgeeks.org/system-design/introduction-to-redis-server/)
* Supported data structures include Strings, Hashes,