Digital currency bitcoin is a digital currency but also a type of virtual currency. Bitcoin and its alternatives are based on cryptographic algorithms, so these kinds of virtual currencies are also called cryptocurrencies. Most of the traditional money supply is bank money held on computers. This is also considered digital currency. One could argue that our increasingly cashless society means that all currencies are becoming digital, but they are not presented to us as such. Currency can be exchanged electronically using debit cards and credit cards using electronic funds transfer at point of sale. A number of electronic money systems use contactless
Currency War of 2009–11 dollar float freely. While the US has taken no direct action to devalue its currency, there is close to universal consensus among analysts that its quantitative easing programmes exert downwards pressure on the dollar. According to many analysts the currency war had largely fizzled out by mid-2011, though others including Mantega disagreed. As of March 2012, outbreaks of rhetoric were still occurring, with additional measures being adopted by countries like Brazil to control the appreciation of their currency. Yet by June, there were signs that currency misalignment had been levelling out in China and across the world, with even Mantega