A geek is a person who is fascinated, perhaps obsessively, by technology and imagination. Geek may not always have the same meaning as the term nerd (see nerd for a discussion of the disputed relation between the terms).
The definition of geek has changed considerably over the years. Below are some definitions of the word “geek”, in order from newer to oldest. All but the last are still in use.
– A person who is interested in technology, especially computing and new media. Comparable with the classic definition of hacker. Late 20th century and early 21st century
Source: Wikipedia