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  2. Portal:Telephones - Wikipedia

    en.wikipedia.org/wiki/Portal:Telephones

    The Telephones Portal. A rotary dial telephone, c. 1940s. A telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be easily heard directly. A telephone converts sound, typically and most efficiently the human voice, into electronic signals that are transmitted via cables ...

  3. P-GRADE Portal - Wikipedia

    en.wikipedia.org/wiki/P-GRADE_Portal

    In this case the legacy code of MadCity is deployed in a service-oriented Grid architecture and accessed through a user-friendly Web interface Parallelization and gridification of air pollution forecast on the HUNGRID infrastructure, with P-GRADE Portal providing a flexible and unified way for parallel application development and multi-grid ...

  4. Social networking service - Wikipedia

    en.wikipedia.org/wiki/Social_networking_service

    Illustrations showing various icons of some popular social networking services. A social networking service or SNS (sometimes called a social networking site) is a type of online social media platform which people use to build social networks or social relationships with other people who share similar personal or career content, interests, activities, backgrounds or real-life connections.

  5. Contact AOL customer support - AOL Help

    help.aol.com/articles/account-management...

    In addition to the support options listed above, paid members also have access to 24/7 phone support by calling 1-800-827-6364. Learn about the support options AOL offers and how to access help for your question or issue.

  6. Public switched telephone network - Wikipedia

    en.wikipedia.org/wiki/Public_switched_telephone...

    Public switched telephone network. The public switched telephone network ( PSTN) is the aggregate of the world's telephone networks that are operated by national, regional, or local telephony operators. It provides infrastructure and services for public telephony. The PSTN consists of telephone lines, fiber-optic cables, microwave transmission ...

  7. Marques Brownlee - Wikipedia

    en.wikipedia.org/wiki/Marques_Brownlee

    Marques Keith Brownlee (/ m ɑːr ˈ k ɛ z ˈ b r aʊ n l iː /; mar-KEZ BROWN-lee; born December 3, 1993), also known professionally as MKBHD, is an American YouTuber and professional ultimate player, best known for his technology-focused videos as well as his podcast Waveform.

  8. History of the telephone - Wikipedia

    en.wikipedia.org/wiki/History_of_the_telephone

    The acoustic tin can telephone, or "lovers' phone", has been known for centuries. It connects two diaphragms with a taut string or wire, which transmits sound by mechanical vibrations from one to the other along the wire (and not by a modulated electric current). The classic example is the children's toy made by connecting the bottoms of two ...

  9. Mobile technology - Wikipedia

    en.wikipedia.org/wiki/Mobile_technology

    4G is the current mainstream cellular service offered to cell phone users, performance roughly 10 times faster than 3G service. [4] One of the most important features in the 4G mobile networks is the domination of high-speed packet transmissions or burst traffic in the channels.