Доклад-презентация на английском языке "Wi-Fi and WI-Fi Zones in My Town" в рамках школьной Недели Наук

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History John O'sullivan The creator of the wireless communication is an engineer John O‘Sullivan. Wi-Fi was created in 1991 in the laboratory of radio astronomy in Canberra, Australia.

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The origin of the name The term "Wi-Fi" was originally invented as a play on words to attract the attention of the consumer with the "hint" on the Hi-Fi ( eng. High Fidelity ). Despite the fact that initially in some press releases the phrase "Wireless Fidelity" ( «беспроводная точность» ) was used , at the moment such word combination was abandoned, and the term "Wi-Fi" doesn't stand for anything.

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The Advantages Of Wi-Fi With WI-Fi you have the network without laying the cable , especially in the places where you cannot do it, for example, in the buildings of historical value . Your mobile devices can have access to the network. Wi-Fi devices are widely available on the market, they have certificates. Mobility . You can use the Internet not in one and the same place . Within Wi-Fi zones several users can surf the Internet from their computers, laptops, phones, etc. 6) The radiation from Wi-Fi devices is much less than from a cell phone.

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Disadvantages Of Wi-Fi 1)Th e electromagnetic radiation from household appliances affects the speed of data transmission. 2)Wi-Fi has a limited range . For example, a typical home router with Wi-Fi in the room has a range of up to 45 meters, and 450 meters - outside. 3)With a high density of Wi-Fi access points they can interfere with each other This affects the quality of the connection.

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Still we understand that wi-fi is a great invention Wi-fi zones in my town