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System Design Basics for Backend Developers · Lesson

Databases and Storage Options

Explore different types of databases (relational, NoSQL) and various storage solutions for persistent data.

Storing Your System's Data

Every application needs to store information. Think about user profiles, product catalogs, or posts on a social media app. This data needs to be saved reliably and retrieved quickly.

In system design, choosing the right storage solution is crucial for performance, scalability, and reliability.

Understanding Persistent Data

Persistent data is information that remains stored even after the application or computer system that created it has been shut down or restarted.

  • It's different from data held in memory (like RAM), which is lost when power is off.
  • Databases are the most common way to store persistent data in backend systems.

All lessons in this course

  1. Clients, Servers, and APIs
  2. Databases and Storage Options
  3. Load Balancers and Caching
  4. Message Queues and Asynchronous Processing
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