event

1. software 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.

See also event-driven.

2. data A transaction or other activity that affects the

records in a file.

(2000-02-09)