How does front-end differ from back-end?

Frontend is the part of the application that interacts directly with the user. It is the interface, data display, and handling of user events in the browser or mobile app. Usually, frontend is implemented using HTML, CSS, JavaScript, and frameworks like React, Vue, Angular.

Backend is the server-side part that processes the application logic, stores data, responds to frontend requests, and manages business processes. Backend runs on a server and can be written in various languages (Python, Java, Go, Node.js, etc.).

Example: when ordering a product on a website, the frontend shows the catalog and order form, while the backend saves the order in the database and processes the payment.