Bigot
Bigot is a pejorative term for a person who is obstinately devoted to their opinions, often engaging in a rude and intolerant manner when these are challenged. Forms of bigotry may have an related ideology, like racism and nationalism.In computing jargon, a bigot is a person who is religiously attached to some programming language, operating system, software or hardware product and often advocates it enthusiastically. A bigot will often refuse to find alternatives to these, even when technological advancements has been introduced since their release.