Backend represents the behind-the-scenes technology of a web application, responsible for server-side logic, database interactions, and core functionality that users don’t directly see but critically depends on.
Core components:
- Server infrastructure
- Database management systems
- Application logic
- APIs (Application Programming Interfaces)
- Authentication systems
- Data processing algorithms
Key responsibilities:
- Data storage and retrieval
- User authentication
- Business logic implementation
- Performance optimization
- Security management
Technologies typically used:
- Programming languages: Python, Java, PHP, Node.js
- Databases: MySQL, PostgreSQL, MongoDB
- Server frameworks: Django, Ruby on Rails, Express.js
- Cloud platforms: AWS, Google Cloud, Azure