Hey, guys. I have a question regarding language, and I was hoping someone here might be able to shed some light on the subject.

It's my understanding that the Gaelic spoken by the Irish, and the Gaelic spoken by the Scots are different dialects of the same language, and mostly mutually-intellegable. Is that correct?

Where does Welsh fit it? Is it a Gaelic language? Would it be understood by speakers of either of the other two versions of Gaelic?