Are the Banking system is an islamic system?

Do You think the profit we taken from Banks is “HALAL” or “Haram” . Quran is our holy book and it is our best teacher and there is no concept of collecting money and count them with a lot of stock in Banks. I think this is difficult for ecnomic system and specially for peoples…I am totally against to the total Banking system. Any one of you Post your reviews for my concept please,. I will be very thankful to you