Understanding Wifi And Function

Hearing the word "WIFI" I'm sure is not a term that is unfamiliar to you all. However, what is the definition of wifi and its function?

Wi-Fi is short for Wireless Fidelity is a conductive a media wireless data communication which can be used for communication or transfer of programs and data with the ability to very quickly.
Why can quickly? Because the conductive a media using radio signals that work on a particular frequency.

Perhaps the term wifi widely known by the public as a medium for the Internet, but it can also be used as a wireless network (wireless) such as in large corporations and ect.
Wireless networks are usually termed a LAN (local area network). So that the location of the computer can be interconnected with other computers are located differently.

As for the use of the internet, wifi requires an access point that is commonly referred to as a hotspot to connect and control between users wifi internet network center.

A hotspot is generally equipped with a password that can minimize anyone who could use the facility. It is often used by home users, restaurants, supermarkets, cafes and hotels. But there is also a hotspot that is not given a password, so that anyone can use them.
For example, amusement parks and stadiums.

For the problem of the working frequency of a standard based on the IEEE (Electrical and electronis Engineers), it is divided into four parts:

• 802.11b 11 Mb / s 2.4 GHz B
• 802.11a 54 Mb / s 5 GHz A
• 802.11g 54 Mb / s 2.4 GHz b, g
• 802.11n 100 Mb / s 2.4 GHz b, g, n

  Type "B" is a product of the first Wi-Fi. While type "g" and "n" is one of the most selling product that has attracted many people at about tahun2005.

Based on its physical form, wi-fi can be divided into two :

• PCI shape
• Shape USB

PCI type typically used on a PC (personal computer), while for the type of use is more portable usb able to laptop or PC. This is because the USB plug is designed with this type. So much easier for users.

The advantages of using the wifi that is more portable, meaning we do not bother to think about connecting cable to the hotspot.
And also, access to faster data transfer can be obtained if the equipment we are still within reach of the center of the hotspot.
But there are also disadvantages of these wi-fi, which is often in the hack (broken) by others. Now it is a lot of software that can break passwords.

Similarly, the notion of wifi and function.
Hopefully my handwriting could be useful for all of you who have been willing to visit this blog.
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