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  2. Bitcoin - Wikipedia

    en.wikipedia.org/wiki/Bitcoin

    Bitcoin (abbreviation: BTC; sign: â‚¿) is the first decentralized cryptocurrency. Nodes in the peer-to-peer bitcoin network verify transactions through cryptography and record them in a public distributed ledger, called a blockchain, without central oversight.

  3. Virtual currency - Wikipedia

    en.wikipedia.org/wiki/Virtual_currency

    Virtual currency. Virtual currency, or virtual money, is a digital currency that is largely unregulated, issued and usually controlled by its developers, and used and accepted electronically among the members of a specific virtual community. [1] In 2014, the European Banking Authority defined virtual currency as "a digital representation of ...

  4. Virtual manipulatives for mathematics - Wikipedia

    en.wikipedia.org/wiki/Virtual_manipulatives_for...

    Base Ten blocks for math. Virtual manipulatives for mathematics are digital representations of concrete mathematics manipulatives. [1] These virtual manipulatives are based on the physical manipulatives used in classrooms. They are generally used to introduce mathematical concepts using visuals and are used for teaching students new topics that ...

  5. Windows Calculator - Wikipedia

    en.wikipedia.org/wiki/Windows_Calculator

    History. A simple arithmetic calculator was first included with Windows 1.0.. In Windows 3.0, a scientific mode was added, which included exponents and roots, logarithms, factorial-based functions, trigonometry (supports radian, degree and gradians angles), base conversions (2, 8, 10, 16), logic operations, statistical functions such as single variable statistics and linear regression.

  6. Tax tips for Bitcoin and virtual currency - AOL

    www.aol.com/finance/tax-tips-bitcoin-virtual...

    Virtual currency like Bitcoin has shifted into the public eye in recent years. Some employees are paid with Bitcoin, more than a few retailers accept Bitcoin as payment, and others hold the e ...

  7. Keene residents arrested in federal virtual-currency probe - AOL

    www.aol.com/keene-residents-arrested-federal...

    The indictment alleges that they knowingly operated the virtual currency exchange business in violation of federal anti-money laundering laws and regulations, the release states.

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