Advantages:
1.It can make lots of students be intersted in this class.
2.Every students should come to the class.
3.Connect teacher and student more easier.
4.It can improve student's grade.
Disadvantages:
1.Let the students distraction, only intersted in technology.
2.If students just use technology in classroom, the teacher have not been adequately trained in its implementation.
3.It cost lots of money.
4.It lost student's time in connect those technology.
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Monday, 4 February 2013
Similarities and differences between Radio and Ipod
There are lots of similarities and differences between Radio and Ipod. Radio can play music, and Ipod can do it too. An iPod is a type of radio. A radio is any portable device that plays mp3s. An iPod just happens to do a lot of other things: watch video, surf the web, play games, etc. And a Ipod can also do all radio can do, such as play music, listen FM radio, etc.
Thursday, 31 January 2013
History of Ipod
Hard to believe it, but a half decade ago today Steve Jobs stood up in front of a small crowd and introduced an "MP3 music player... But do you know, Jeff Robin is the first iPod conceived, because of funding constraints, he chose to demonstrate to Apple company, the company hired him to achieve his project as an independent contractor, and he was responsible for a collection of firstsecond-generation device development team. Since then, the well-known Apple Walkman product iPod the transformation starting born, and quickly withering defeat opponents to become the overlord of the Walkman community. It can play all of the popular open formats of digital music, MP3, MP3 VBR, WAV, and AIFF," a device that changed the consumer electronics industry forever. Of course, that device was the iPod. Love it or hate it,the iPod helped to make consumer electronics cool again, and managed to be a huge step forward for the CE industry shortly after the tech bubble had burst -- and during a time when the country was in turmoil after the attacks of 9/11, no less.
History of Radio
History of Radio
Marconi (1874-1937) was born in Italy and studied at the University of Bologna. He was fascinated by Heinrich Hertz’s earlier discovery of radio waves and realized that it can be used for sending and receiving telegraph messages, referring to it as “wireless telegraphs.”
Marconi’s first radio transmissions, in 1896, were coded signals that were transmitted only about a mile (1,6 km) far. Marconi realized that it held huge potential. He offered the invention to the Italian government but they turned it down. He moved to England, took out a patent, and experimented further. In 1898 Marconi flashed the results of the Kingstown Regatta to the offices of a Dublin newspaper, thus making a sports event the first “public” broadcast. The next year Marconi opened the first radio factory in Chelmsford, Essex and established a radio link between Britain and France. A link with the USA was established in 1901. In 1909 Marconi shared the Nobel prize in physics for his wireless telegraph. Marconi became a wealthy man.
Today, there are more than 33,000 radio stations around the world, with more than 12,000 in the US alone. Worldwide there are more than 2 billion radio sets in use, or about one radio for every 3 persons; proof that video never killed the radio star.
This is the history of Radio.
Marconi (1874-1937) was born in Italy and studied at the University of Bologna. He was fascinated by Heinrich Hertz’s earlier discovery of radio waves and realized that it can be used for sending and receiving telegraph messages, referring to it as “wireless telegraphs.”
Marconi’s first radio transmissions, in 1896, were coded signals that were transmitted only about a mile (1,6 km) far. Marconi realized that it held huge potential. He offered the invention to the Italian government but they turned it down. He moved to England, took out a patent, and experimented further. In 1898 Marconi flashed the results of the Kingstown Regatta to the offices of a Dublin newspaper, thus making a sports event the first “public” broadcast. The next year Marconi opened the first radio factory in Chelmsford, Essex and established a radio link between Britain and France. A link with the USA was established in 1901. In 1909 Marconi shared the Nobel prize in physics for his wireless telegraph. Marconi became a wealthy man.
Today, there are more than 33,000 radio stations around the world, with more than 12,000 in the US alone. Worldwide there are more than 2 billion radio sets in use, or about one radio for every 3 persons; proof that video never killed the radio star.
This is the history of Radio.
Thursday, 13 December 2012
Friday, 7 December 2012
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