Full form of imdb is international movie database. the owner of imdb is Amazon.i t. is created by col Needham who is ceo.it launched on 17 october 1990.
In October 2018 imdb has approximately 5.3 million titles and 9.3 million personalities in it database and it has 83 million registered users.
IMDb originated with a Usenet posting by British film fan and computer programmer Col Needham entitled "Those Eyes", about actresses with beautiful eyes. Others with similar interests soon responded with additions or different lists of their own. Needham subsequently started an "Actors List", while Dave Knight began a "Directors List", and Andy Krieg took over "THE LIST" from Hank Driskill, which would later be renamed the "Actress List". Both lists had been restricted to people who were alive and working, but soon retired people were added, so Needham started what was then (but did not remain) a separate "Dead Actors/Actresses List". The goal of the participants now was to make the lists as inclusive as possible.
By late 1990, the lists included almost 10,000 movies and television series correlated with actors and actresses appearing therein. On 17 October 1990, Needham developed and posted a collection of Unix shell scripts which could be used to search the four lists, and thus the database that would become the IMDb was born. At the time, it was known as the "rec.arts.movies movie database".