2026 Software Development Practice Test for IT Specialists – Complete Prep Guide

Observables that software responds to are events. A mouse click, a window opening, or a text field changing are all occurrences you can detect and handle in code. In event-driven programming, you write handlers that react when these events happen. While a process is a running program and a task is a unit of work, and an action is a general deed, the formal term for these kinds of happenings that trigger responses is an event.