MARK GARLICK / SCIENCE PHOTO LIBRARY MARK GARLICK / SCIENCE PHOTO LIBRARY
Conceptual illustration of Bitcoins surrounding a smartphone. Bitcoin is a type of digital currency, created in 2009, which operates independently of any bank. Certain vendors now accept Bitcoins as payment for goods or services, and more and more these transactions will take place with a device such as a tablet computer or a smartphone, seen here.
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