Before revision: Chainik (Russian, Ukrainian: чайник, "teakettle") is a term that implies both ignorance and a certain amount of willingness to learn (as well as a propensity to cause disaster), but does not necessarily imply as little experience or short exposure time as newbie and is not as derogatory as luser.
After revision: computerChainik (Russian, Ukrainian: чайник, "teakettle") is a term that implies both ignorance and a certain amount of willingness to learn (as well as a propensity to cause disaster), but does not necessarily imply as little experience or short exposure time as newbie and is not as derogatory as luser.