TECH-BOOM

 What is an Easter Egg ?
A virtual Easter egg is an intentional hidden message or feature in an object such as a movie, book, CD, DVD, computer program, web page or video game. The term draws a parallel with the custom of the Easter egg hunt observed in many Western nations, but actually is derived by the practice of the last Russian imperial family's tradition of giving elaborately jeweled egg-shaped creations by Fabergé which usually contained hidden gifts themselves.

This practice is similar in some respects to hidden signature motifs such as Diego Rivera including himself in his murals, Alfred Hitchcock's legendary cameo appearances, and various "Hidden Mickeys" that can be found throughout Disneyland. An early example of these kind of "Easter eggs" is Al Hirschfeld's "Nina."

Atari's Adventure, released in 1979, contained what was thought to be the first video game "Easter egg", the name of the programmer (Warren Robinett). However, evidence of earlier Easter eggs has since surfaced. Several cartridges for the Fairchild Channel F include previously unknown Easter eggs, programmed by Michael Glass and Brad Reid-Selth, that are believed to predate Robinett's work The 1978 Atari arcade games Orbit and Skydiver also include Easter eggs, programmed by Owen Rubin, though unlike Glass and Reid-Selth's eggs, the method of triggering these has yet to be discovered. Despite this evidence of prior art, Robinett's egg was certainly the first of its kind to be discovered and, consequently, the first Easter egg to come to widespread attention.

Source
The Google's Easter Egg
Check out the Google's Easter Egg by Visiting here.