A core banking system is the software used to support a bank’s most common transactions.
Core banking functions differ depending on the specific type of bank. Retail banking, for example, is geared towards individual customers; wholesale banking is business conducted between banks; and securities trading involves the buying and selling of stocks, shares and so on. Core banking systems are often specialized for a particular type of banking. Products that are designed to deal with multiple types of core banking functions are sometimes referred to as universal banking systems.