query
can be either a select query or an action query. A select query is simply a data retrieval query. An action query can ask for additional operations on the data, such as insertion, updating, or deletion.

Quicktime
a multimedia development, storage, and playback technology from Apple. Quicktime files combine sound, text, animation, and video in a single file. Using a Quicktime player that either comes with a Web browser or can be downloaded from Apple or the browser company, you can view and control brief multimedia sequences. The file name extensions are qt, mov, and moov.

quiesce
to put a computer, a program, a thread, or some other computer resource into a temporarily inactive or inhibited state.