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Apa Itu Internet ?

Apa Itu Internet ? What is wireless and how does it work? Wireless can be described as the transfer of information between two or more points that are physically not connected. Apa Itu Internet, Distance can be as short as a few meters such as on a television remote control or long, ranging from thousands to millions of kilometers for space radio communication. Perhaps the best example of wireless technology is cellphones. The world's first wireless telephone conversation took place in 1880, when Alexander Graham Bell and Charles Sumner Tainter discovered and patented the photophone, a telephone that conducts audio conversations wirelessly through controlled light (electromagnetic waves).

Then in 1915 American Phones and the Telegraph thought about making cordless phones but they were afraid that this great technology would damage its monopoly on cable services in the United States. They are right. Over 85 years later, this unwanted little device has revolutionized the telephone industry and made cable telephone operators out of business by offering free long distance, free nights and weekends, offering free singing,

Apa Itu Internet

Apa Itu Internet, Common everyday wireless devices also include, garage door openers, cordless phones, two-way radios, satellite television, satellite internet, GPS, and Wi-Fi. When personal computers became popular in the early 1970s, came the idea of ​​portable personal computers. In 1981 Adam Osborne produced the first personal portable computer (now called a laptop), Osborne 1. It weighs 24 pounds, has a 5-inch screen and costs $ 1,795 ($ 4,552 today). The demand for laptops has soared. The desired customer portability.

When the Internet boom occurred in the 1990s, the idea of ​​connecting to the Internet with a portable laptop without cables emerged. In contrast to the hard internet connection of a personal desktop computer, it will be wireless and require a faster connection. In 1999 the words Wi-Fi and yin-style logos created by the Wi-Fi Alliance as an easier term for IEEE 802.11. Apa Itu Internet, Today more than 700 million people use Wi-Fi throughout the world and there are more than 4 million hotspots (places with Wi-Fi Internet connectivity).

How does it work? If you are at a airport, coffee shop, library, or hotel recently, chances are you are right in the middle of a wireless network. Wireless networks use radio waves, such as cellphones, television, and radio. In fact, communication over wireless networks is very similar to two-way radio communication.

This is what happened:

  • Your laptop computer translates data into radio signals and transmits it using an internal antenna.
  • The wireless router receives a signal and translates it. Routers send information to the Internet using a physical wired Ethernet connection.

Do you remember the first time you rode a bicycle without hands? "Look, ma'am! Don't hands!" Ahhh ... it's free like a bird. Apa Itu Internet, Computer users can experience the same when using wireless for the first time and every time. Sitting in the same "glued" position on the same desktop computer in the same place just to wake up to find your spine in a traffic jam.

Did you know that sitting position is the worst position for your back and puts the most pressure on your spine? There is no inflammation of back pain that is inflamed by having to remain in a fixed position on the same small 3-legged wooden chair that has outlived life expectancy. Apa Itu Internet, Moving from one place to another without having to worry about tripping over cables is easy.

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