Whois & Analysis for preev.com

Bitcoin is both a cryptocurrency and an electronic payment system invented by an unidentified programmer, or group of programmers, under the name of Satoshi Nakamoto.

Bitcoin was introduced on 31 October 2008 to a cryptography mailing list, and released as open-source software in 2009.

The identity of Nakamoto remains unknown, though many have claimed to know it.

The United States dollar (sign: $; code: USD; also abbreviated US$ and referred to as the dollar, U.S. dollar, or American dollar) is the official currency of the United States and its insular territories per the United States Constitution.

It is divided into 100 smaller cent (¢) units.

The circulating paper money consists of Federal Reserve Notes that are denominated in United States dollars.

A currency (from, "in circulation", from) in the most specific use of the word refers to money in any form when in actual use or circulation as a medium of exchange, especially circulating banknotes and coins.

A more general definition is that a currency is a system of money (monetary units) in common use, especially in a nation.

Under this definition, US dollars, British pounds, Australian dollars, and European euros are examples of currency.

These various currencies are recognized stores of value and are traded between nations in foreign exchange markets, which determine the relative values of the different currencies.

Currencies in this sense are defined by governments, and each type has limited boundaries of acceptance.

An electronic calculator is a small, portable electronic device used to perform operations ranging from basic arithmetic to complex mathematics.

In ordinary usage, price is the quantity of payment or compensation given by one party to another in return for goods or services.