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  2. Technology of television - Wikipedia

    en.wikipedia.org/wiki/Technology_of_television

    The elements of a simple broadcast television system are: . An image source. This is the electrical signal that represents a visual image, and may be derived from a professional video camera in the case of live television, a video tape recorder for playback of recorded images, or telecine with a flying spot scanner for the transfer of motion pictures to video).

  3. Wireless network - Wikipedia

    en.wikipedia.org/wiki/Wireless_network

    Wireless icon. A wireless network is a computer network that uses wireless data connections between network nodes. [ 1] Wireless networking allows homes, telecommunications networks and business installations to avoid the costly process of introducing cables into a building, or as a connection between various equipment locations. [ 2]

  4. Technology and society - Wikipedia

    en.wikipedia.org/wiki/Technology_and_society

    Technology, society and life or technology and culture refers to the inter-dependency, co-dependence, co-influence, and co-production of technology and society upon one another. Evidence for this synergy has been found since humanity first started using simple tools. The inter-relationship has continued as modern technologies such as the ...

  5. Policies promoting wireless broadband in the United States

    en.wikipedia.org/wiki/Policies_promoting...

    Wireless service providers are constantly competing to create the best network with the best service and quality. With more towers and increased advanced technologies, wireless has become a convenient and widely accessible mode of communication. The negative, however, is the technology which wireless Internet uses.

  6. Presents a debate on which technology will be in tomorrow's classrooms and the pros and cons of wiring classrooms and using a wireless network. Concluding comments address the likelihood, and desirability, of placing computers throughout the entire educational process and what types of computers and capabilities are needed.

  7. Wireless ad hoc network - Wikipedia

    en.wikipedia.org/wiki/Wireless_ad_hoc_network

    Wireless ad hoc network. A wireless ad hoc network [1] ( WANET) or mobile ad hoc network ( MANET) is a decentralized type of wireless network. The network is ad hoc because it does not rely on a pre-existing infrastructure, such as routers or wireless access points. Instead, each node participates in routing by forwarding data for other nodes.

  8. This study examines the advantages and disadvantages of using leading information technology to teach primary and lower secondary school students. The study sample consisted of 50 students between the ages of 11 and 14. The questionnaire included four types of scientific research questions, consisting of discovery, descriptive, explanatory, and ...

  9. Learning by television is not a new phenomenon and, as an educational medium, it has gone through some severe growing pains. Unfortunately, while advances in technologies (cable, home recorders, satellites, teleconferencing) have contributed to an increase in the number of telecourses since the mid-1970s, faculty are often unprepared to teach these courses, and the institutions involved may be ...