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  2. Density - Wikipedia

    en.wikipedia.org/wiki/Density

    Mathematically, density is defined as mass divided by volume: [1] =, where ρ is the density, m is the mass, and V is the volume. In some cases (for instance, in the United States oil and gas industry), density is loosely defined as its weight per unit volume , [ 2 ] although this is scientifically inaccurate – this quantity is more ...

  3. History of computing hardware - Wikipedia

    en.wikipedia.org/wiki/History_of_computing_hardware

    The ANITA sold well since it was the only electronic desktop calculator available, and was silent and quick. The tube technology was superseded in June 1963 by the U.S. manufactured Friden EC-130, which had an all-transistor design, a stack of four 13-digit numbers displayed on a 5-inch (13 cm) CRT, and introduced reverse Polish notation (RPN).

  4. ATM - Wikipedia

    en.wikipedia.org/wiki/ATM

    This is an accepted version of this page This is the latest accepted revision, reviewed on 21 February 2025. Electronic telecommunications device to perform financial transactions Several terms redirect here. For other uses, see Cash machine (disambiguation), Money machine (disambiguation), and ATM (disambiguation). An old Nixdorf ATM Smaller indoor ATMs dispense money inside convenience ...

  5. Windows 11 - Wikipedia

    en.wikipedia.org/wiki/Windows_11

    Though a support document listed October 4, 2021, as the initial release date, [67] Microsoft officially released Windows 11 on October 5, 2021, [8] [68] as an opt-in, in-place upgrade through either the Windows 11 Installation Assistant application (which can perform the upgrade, or generate an ISO image or USB install media), or via Windows ...

  6. Economy of Pakistan - Wikipedia

    en.wikipedia.org/wiki/Economy_of_Pakistan

    The 1980s saw a surge in manufacturing exports, with an annual large-scale manufacturing growth rate of 8.8%, and solid growth in agriculture, with an annual agricultural growth rate of 5.4%. These highlights underscore a transformative and recovering economic period in the 1980s, characterized by a shift in economic policies, improved fiscal ...

  7. Titanic - Wikipedia

    en.wikipedia.org/wiki/Titanic

    The 2,000 hull plates were single pieces of rolled steel plate, mostly up to 6 feet (1.8 m) wide and 30 feet (9.1 m) long and weighing between 2.5 and 3 tonnes. [82] Their thickness varied from 1 inch (2.5 cm) to 1.5 inches (3.8 cm). [44] The plates were laid in a clinkered (overlapping) fashion from the keel to the bilge.

  8. Economic history of the United States - Wikipedia

    en.wikipedia.org/wiki/Economic_history_of_the...

    In 1860, there were 4.5 million Americans of Afro-American descent, 4 million of which were slaves, worth $3 billion. [118] They were mainly owned by southern planters of cotton and sugarcane. An estimated 60% of the value of farms in Alabama, Georgia, Louisiana, Mississippi and South Carolina was in slaves, with less than a third in land and ...

  9. Smartphone - Wikipedia

    en.wikipedia.org/wiki/Smartphone

    In Q4 2014, Apple had a 20.4% share and Samsung had 19.9%. [291] In Q2 2016, Samsung had a 22.3% share and Apple had 12.9%. [292] In Q1 2017, IDC reported that Samsung was first placed, with 80 million units, followed by Apple with 50.8 million, Huawei with 34.6 million, Oppo with 25.5 million and Vivo with 22.7 million. [293]