Final answer:
A sequential program follows a linear order of execution, while an event-driven program responds to user-generated actions or events.
Step-by-step explanation:
A sequential program is one that executes instructions in a linear order, one after another. It follows a predetermined flow and does not respond to user actions or events unless explicitly programmed to do so. On the other hand, an event-driven program is designed to respond to user-generated actions or events. It waits for events to occur and then executes the corresponding actions or event handlers.
For example, consider a simple calculator program. In a sequential program, the user inputs the numbers and performs calculations step by step, following a fixed order of operations. In contrast, an event-driven calculator program would have buttons for different operations like addition, subtraction, multiplication, and division. The program responds to the user clicking on these buttons and performs the corresponding calculations.