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  2. Online and offline - Wikipedia

    en.wikipedia.org/wiki/Online_and_offline

    In computer technology and telecommunications, online indicates a state of connectivity and offline indicates a disconnected state. In modern terminology, this usually refers to an Internet connection, but (especially when expressed "on line" or "on the line") could refer to any piece of equipment or functional unit that is connected to a ...

  3. Extremely online - Wikipedia

    en.wikipedia.org/wiki/Extremely_online

    Extremely online. Extremely online (often capitalized [1] ), also terminally online [2] or chronically online, [3] is a phrase referring to someone closely engaged with Internet culture. [1] People said to be extremely online often believe that online posts are very important. [4] [5] Events and phenomena can themselves be extremely online; [4 ...

  4. Online learning in higher education - Wikipedia

    en.wikipedia.org/wiki/Online_learning_in_higher...

    Online learning involves courses offered by primary institutions that are 100% virtual. Online learning, or virtual classes offered over the internet, is contrasted with traditional courses taken in a brick-and-mortar school building. It is a development in distance education that expanded in the 1990s with the spread of the commercial Internet ...

  5. Online learning - Wikipedia

    en.wikipedia.org/wiki/Online_learning

    Online learning. Online learning may refer to study in home. Educational technology, or e-learning. E-learning (theory) Distance education. Virtual school. Online learning in higher education. Massive open online courses. Online machine learning, in computer science and statistics.

  6. Online shopping - Wikipedia

    en.wikipedia.org/wiki/Online_shopping

    Online shopping is a form of electronic commerce which allows consumers to directly buy goods or services from a seller over the Internet using a web browser or a mobile app. Consumers find a product of interest by visiting the website of the retailer directly or by searching among alternative vendors using a shopping search engine, which ...

  7. Linear algebra - Wikipedia

    en.wikipedia.org/wiki/Linear_algebra

    The blue line is the common solution to two of these equations. Linear algebra is the branch of mathematics concerning linear equations such as: linear maps such as: and their representations in vector spaces and through matrices. [1] [2] [3] Linear algebra is central to almost all areas of mathematics.

  8. Internet - Wikipedia

    en.wikipedia.org/wiki/Internet

    The Internet (or internet) [a] is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) [b] to communicate between networks and devices. It is a network of networks that consists of private, public, academic, business, and government networks of local to global scope, linked by a broad array of ...

  9. Linear equation - Wikipedia

    en.wikipedia.org/wiki/Linear_equation

    The phrase "linear equation" takes its origin in this correspondence between lines and equations: a linear equation in two variables is an equation whose solutions form a line. If b ≠ 0, the line is the graph of the function of x that has been defined in the preceding section. If b = 0, the line is a vertical line (that is a line parallel to ...