Monolithic Architecture is a software design approach where all components of an application are combined into a single, unified program. This means that the user interface, business logic, and database management are all tightly integrated. While this can simplify development and deployment, it can also make the application less flexible and harder to scale, as any change requires the entire system to be updated. In a monolithic system, if one part of the application encounters an issue, it can affect the entire system. This contrasts with more modern approaches like Microservices, where applications are broken down into smaller, independent services. Monolithic Architecture is often easier for small projects but can become cumbersome as applications grow.