Understanding WiFi and its Functions

WiFi devices are currently very popular because they are practical and easy to use. In general, currently all mobile devices such as cellphones and laptops already provide WiFi features. Besides, nowadays an internet connection is very much needed, especially for work purposes and to communicate with each other on social media. Lots of places that provide WiFi internet connection ranging from restaurants, cafes, hotels, inns, parks and other places. Because places that provide free internet connection will attract a lot of visitors.

WiFi (Wireless Fidelity) is a technology that uses radio waves to connect devices (PCs, laptops, smartphones) to a computer network. Or the definition of WiFi is a technology that uses radio waves so that computers can access the internet.

For a WiFi connection, a wireless adapter (without cables) is needed to build a hotspot, so that with a certain scope the user can access the internet. In connectivity, WiFi uses wireless to connect to the user’s device, which generally uses a frequency of 2.4GHz to 5GHz. Initially, WiFi was only used as a wireless device on a LAN (Local Area Network) network, but along with the development of technology and user needs, now it can also be used to access the internet network.

How WiFi Works in Brief

The workings of WiFi on a computer, namely Wireless LAN that has been configured so that it becomes WiFi, will receive data from a computer in digital form. Then the data will be converted into radio signals and then sent to the router, sending these waves through the antenna on the adapter. And the signal from the router will send data that has been processed from the internet to a computer that has been connected to a WiFi adapter. (Also read: Definition of WLAN or wireless LAN).

WiFi Function

From the explanation above, it can be concluded that WiFi functions as:

a. For connection to the Internet network

Can connect PC devices, laptops or smartphones that support WiFi to the internet network without using cables, making it more practical and fast.

b. File Sharing

Devices that support WiFi allow sharing data/files without using cables, making it more practical and less complicated.

c. Connecting Mobile to PC

Currently, cellphones are increasingly sophisticated and already support WiFi, with the addition of certain applications, our cellphones can be connected to a PC or Laptop without using USB, only WiFi is enough, and of course our PC or Laptop must also support wireless devices.

d. Make Mobile As Modem

Not only as a WiFi signal receiver, but a smartphone can also be a portable modem, more precisely as a radio signal transmitter or hotspot. So that if it is connected to a laptop/PC device that supports WiFi, the laptop/PC can access the internet.

e. Good Speed

For smartphone users, of course, the speed when using WiFi is better than using a regular cellular network when accessing the Internet. Lots of smartphone users use WiFi to access streaming videos, and download files, because access is fast and easy. Besides that, another reason to use WiFi is because it is cost-effective.

Benefits of WiFi

There are several benefits that can be obtained from WiFi, for example, such as:

a. Accessibility

With WiFi, we can access the internet network quickly and practically without using cables, wherever and whenever there is a hotspot signal, whether it’s using a cellphone, laptop or PC that supports WiFi Of course.

b. Mobility

WiFi has high mobility, because currently WiFi is widely available in public places ranging from parks, cafes, restaurants, supermarkets, hotels etc. with easy internet access without using a cable so it is very practical.

c. Productivity

For people who work relying on the internet network, then with WiFi, work productivity can increase, because of easy internet access.

d. Distribution

Unlike accessing the internet network using a cable, WiFi is very practical and uncomplicated so that it can be used at any time, so that with WiFi the internet network is easily accessible by many people.

e. Save Cost

To create an internet network that supports WiFi, of course, it tends to be cost-effective, especially saving on buying cables. This is the reason why some companies and people prefer to build wireless devices. Especially for laptop and smartphone users who use WiFi a lot to stream videos and even download files, with WiFi it can save costs, imagine if using cellular data might be wasteful.

Advantages and Disadvantages of WiFi

There are several advantages/advantages of using WiFi, for example, such as:

Save cost.
Practical when accessing the internet, sharing files, etc. anywhere and anytime of course within a certain radius of the hotspot.
Reduces the use of cables, and can overcome where cables cannot be used in certain places or spaces.
WiFi networks are durable and resistant to various kinds of interference.
Not too much configuration. For example, in an office there are several rooms, just configure one wifi network in each room. So if there are office employees who often change rooms or workplaces, there is no need to configure the internet network anymore.
There are some disadvantages when using WiFi, for example, such as:

Security is not good, so the WiFi network must be secured, for example by using a password. This is to avoid people who have no interest in accessing the WiFi network.
WiFi signal tends to be affected by weather and climate conditions.
Uneven signal distribution, due to distance limitations.
Not suitable for very large data transfer activities.

That’s a short summary containing the meaning of WiFi and its functions, hopefully it will be useful.