Newbie
Alternatively referred to as a n00b, noob, nooblet, or nub, a newbie is slang used to describe an individual who is new to something, such as computers or a computer game. Often when a player calls another player a "noob" they're putting that person down as someone who doesn't know what they're doing and has no skill.
Also see: Alpha geek, Carebear, Dummy, Expert, Game definitions, Layman, Llama, L2P, QQ, Rookie