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презентация "The Net"

Опубликовано Фетюкова Татьяна Алексеевна вкл 03.09.2015 - 20:22
Фетюкова Татьяна Алексеевна
Автор: 
Бодрягин Андрей

Небольшая презентация об интернете.

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Слайд 1

The net Made by Andrey bodryagin

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Initially, the Internet was used by America to transmit information in case of war. Now the Internet is not used as intended. Now the Internet is available to all.

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Initially used IP - data transfer. Then they began to use optical fiber.

Слайд 4

Wi-Fi (or WiFi ) is a local area wireless computer networking technology that allows electronic devices to network , mainly using the 2.4 gigahertz (12 cm) UHF and 5 gigahertz (6 cm) SHF ISM radio bands. The Wi-Fi Alliance defines Wi-Fi as any "wireless local area network" (WLAN) product based on the Institute of Electrical and Electronics Engineers' (IEEE) 802.11 standards.[1] However, the term "Wi-Fi" is used in general English as a synonym for "WLAN" since most modern WLANs are based on these standards. "Wi-Fi" is a trademark of the Wi-Fi Alliance. The "Wi-Fi Certified" trademark can only be used by Wi-Fi products that successfully complete Wi-Fi Alliance interoperability certification testing. Many devices can use Wi-Fi, e.g. personal computers, video-game consoles, smartphones, digital cameras, tablet computers and digital audio players.

Слайд 5

According to the survey of All-Russian Public Opinion Research Center conducted in October 2014, about 76.3 million Russian citizens use the Internet. Daily access to network - 53.6 million adults Russians.

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Also we use the Internet at school. There are a lot of websites that can help us to prepare for exams, learn new information, remember that we have forgotten.

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Internet – addiction Internet addiction - is an obsessive desire to connect to the Internet, the inability to end the session on the Internet.

Слайд 8

Questions 1)How was the Internet used in the usa 2 ) What is the Wi-fi ? 3 ) How many people in Russia use the Internet every day? 4) Why do we need the Internet?

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