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 the currency war had ended – governments of emerging economies were increasingly deciding to accept currency appreciation so as to mitigate rising food prices, one of the causes behind civil discontent driving the Arab Spring. In April, the "Financial Times" joined Bloomberg in reporting that the currency war was beginning to fizzle out, again suggesting a key reason was the trend for emerging economies to allow currency appreciation as a means to offset inflation. Although Brazil is one of the emerging countries that has recently abandoned intervening against appreciation, her finance minister Guido Mantega disagreed with suggestions that the 'currency