Banking has to do with engaging in the business of keeping money for savings and checking accounts or for exchange or for issuing loans and credit etc. it consist of transacting business with a bank; depositing or withdrawing funds or requesting a loan etc. in another aspect, it is the legal right of a bank to seize deposited funds to cover a loan that is in default
Commercial banks are those that provide the general public with deposit and withdrawal accounts services, and with loans. The odds are you deal with a commercial bank on a regular basis. There are a variety of methods by which commercial banks make a profit, including fees, credit card interest, loans and optional add-ons.