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Glossary

Event

An event is an occurrence or happening of significance to a task or program, such as the completion of an asynchronous input/output operation. A task may wait for an event or any of a set of events or it may (request to) receive asynchronous notification (a signal or interrupt) that the event has occurred. Event-driven programming or event-based programming is a computer programming paradigm in which the flow of the program is determined by user actions (mouse clicks, key presses) or messages from other programs. In contrast, in batch programming or flow-driven programming the flow is determined by the programmer. Batch programming is the style taught in beginning programming classes while event-driven programming is what is needed in any interactive program. Event-driven programs can be written in any language, although the task is easier in some languages than in others. http://en.wikipedia.org/wiki/Event-driven_programming