What Is Wi-Fi?
Wi-Fi is a technology that uses radio waves to provide network connectivity. "Wi-Fi doesn’t actually stand for anything. It is not an acronym. There is no meaning," stated Phil Belanger, a member of the Wi-Fi Alliance. "We (the founding members of the Wireless Ethernet Compatibility Alliance, now called the Wi-Fi Alliance) hired Interbrand to come up with the name and logo that we could use for our interoperability seal and marketing efforts.'"
A Wi-Fi connection is established using a wireless adapter to create hotspots - areas in the vicinity of a wireless router that are connected to the network and allow users to access internet services.
Wi-Fi provides to your devices wireless connectivity by emitting frequencies between 2.4GHz - 5GHz, based on the amount of data on the network.
Wi-Fi networks are typically small, can be private and have a limit on the numbers of users connecting. If the network is private, you would need to know a password to have access. If the network is public, the hotspot would allow any device with Wi-Fi capabilities to log in. You can turn on your Wi-Fi to look for an existing network on your device.
Technology has helped speeds move past what can be expected with an average Wi-Fi connection, making 4G the connection channel of choice for fast and secure internet access on the move.
Advances in mobile connectivity offer solid speeds depending on the carrier and the location, often better than can be expected with the average Wi-Fi connection, especially if you're trying to use a congested Wi-Fi hotspot.
What is G?
G stands for generation – 4G means “fourth generation”.
Quora.com explains 4G this way “Initiated in 2010, the fourth generation is an all IP based network system. Its purpose is to provide high speed, high quality and high capacity to users while improving security and lower the cost of voice and data services, multimedia and internet over IP.”
The generations are ever-higher industry standards of speed, so an area with 4G service will always be faster than an area with 3G. Other factors of speed depend on the device being used. Older devices can't use the full power of an area with higher coverage. A 3G phone will work in an area with 4G coverage, but will only connect at 3G speeds, and likewise a 4G phone will work in an area with 3G, but only connect at 3G speeds.
The tech world is currently developing a 5G that potentially will be coming by 2020. It is in the media quite a bit now.
Cyber security company F-Secure says: "Public Wi-Fi simply wasn't built with 21st century security demands in mind. When you use public Wi-Fi without any added security measures, you leak data about yourself from your device."
Using 4G securely is now a priority due to the speed and convenience that 4G connections has meant their popularity has skyrocketed.
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