Normal crypto-coins are a digital asset built to be employed as an item of trade. New coins can be added by mining. Everyone is able to do this by using their a computer. Mining uses a lot of hours and electrical power, though. A high-powered computer is also required, to mine effectively. On the other hand, Ripple is a centralised asset, which can't be mined. A fixed amount of coins were generated by the company and this number will not be added to.