An undocumented function hidden in software that may or may not be sanctioned by management. Easter Eggs are secret "goodies" found by word of mouth or accident. They are also used in video games, movies, TV commercials, DVDs, CDs, CD-ROMs and every so often in hardware.

In Applications
Very often, pressing some key combination when the About box is open (Help/About) displays the names of the developers who worked on the software. A video game might display the game designer's name when a certain maneuver is completed.

The Media
A movie or TV Easter Egg could be a date on a calendar of a famous event that provides a clue to the movie's ending. The headline in a newspaper casually lying on the table might offer a clue or perhaps some tongue-in-cheek comment.

The right menu sequence on a DVD might produce extra trailers, and extra bonus tracks (extra goodies) may also be called Easter Eggs.

In Hardware
A hardware Easter Egg might play a song if a certain key combination is pressed. For more information, visit www.eeggs.com. See back door, cheat code and cuckoo egg.