Event-driven software is a type of software design where programs respond to events triggered by user actions, system events, or other sources.
Event Handlers: Event handlers are sections of code that specify what should happen when certain events occur.
User Interface (UI): The user interface is the visual and interactive part of a program that allows users to interact with the software.
Callback Functions: Callback functions are functions that are passed as arguments to other functions and get executed when certain events occur.