Application Server
An application server is a software framework that provides an environment for running and managing web applications, services, and APIs. It handles tasks such as request processing, session management, security, and transaction coordination, allowing developers to focus on business logic rather than infrastructure concerns. Common examples include Apache Tomcat, JBoss/WildFly, and Microsoft IIS.
Developers should learn and use application servers when building enterprise-level web applications, microservices, or distributed systems that require scalability, reliability, and standardized deployment. They are essential for handling high traffic, managing resources efficiently, and integrating with databases and other services in production environments. Use cases include e-commerce platforms, banking systems, and large-scale SaaS applications.