Can someone explain to me more about allah?

Allah is considered the arabic word for "God", the same God that Christens and Jews believe. Allah can be called "Lord", "God", "Savior", "Master", etc. and still be considered the same thing. The only significant difference is that while Christianity believes Jesus to be the son of God, Islam believes him to be a prophet of God. This would be just like Abraham, Moses, Noah, etc. Islam does believe in Heaven and Hell.