Wi-fi or Wireless Fidelity is a facility which allows computers, smartphones and other network access devices to connect to the internet or communicate with one another wirelessly within a particular area. It is a radio signal sent from a wireless router to nearby devices, which translates the signal in the form of data. The device transmits a radio signal back to the router, which connects to the internet by wire or cable. As a basic concept of network technology we can say that it is simply an internet connection which is shared with multiple devices in a home or business via a wireless router. The router is connected directly to the internet modem which acts as a hub to broadcast the internet signal to all Wi-Fi enabled devices. This gives you flexibility to stay connected to the internet as long as you’re within your network coverage area.
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Benefits of Wireless

Wi-Fi uses radio waves to transmit data from wireless router to Wi-Fi enabled devices like smart TV, smartphone, tablet and computer because they communicate with each other over airwaves. Sometimes network devices and personal information can become vulnerable to hackers, cyber-attacks and other threats. This is especially true when you connect to a public Wi-Fi network at places like a coffee shop or airport. When possible, it’s best to connect to a wireless network that is password-protected or a personal hotspot.
Wi-Fi increases efficiency and Improves data communications which lead to faster transfer of information within businesses and between partners and customers. It is very flexible to use and is cost saving. It is convenient to use. It allows multiple users to connect through the same network. In a fraction of seconds without any configurations, connections can be made through the router or a hotspot technology. Its Installation is very quick and easy and does not require any particular technical knowledge of wifi and its protocols.

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Wi-Fi is an advanced mode of wireless communication but has many drawbacks also. Data transfer rate decreases when the number of clients or computers connected with wifi networks increases. Full security is difficult to achieve due to wifi connection being wireless in nature. It requires proper security authentication protocols and configurations. Even though many encryption techniques are taken by the wireless networks, Wifi is still vulnerable to hacking. Due to its wireless nature it has high chances of being hacked especially the Public Wifi networks. Range offered by a Wifi network is limited, typically around 100-150 feet. The bandwidth of the Wifi network gets weaker as you add more devices. But still Wi-fi is an advanced mode of connecting to the internet. It is one of the greatest success stories of the technology era, and a key to continued social and economic growth. The increase in Wi-Fi devices and dependence upon Wi-Fi has made it a necessity of everyday life.In addition to its well-known societal benefits, Wi-Fi provides significant benefits to economies worldwide.
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