Wi-Fi essentially is the technology that enables you to transmit information, images without the need for wires or VGA cables. It is the best option that enables you to get access to data of all kinds as well as images, videos without the need to put in place cabling, wiring, connectors and other paraphernalia normally associated with a wired service.
How does it work?
Wi-Fi makes use of a technology called as IEEE 802.11a or 802.11b. This means that speeds of 11Mbps or 54 Mbps can be harnessed as the network operates in a radio band that is unlicensed. This is the 2.4 – 5 GHz radio band.
This technology facilitates transmission of data almost ten times quicker than Bluetooth and has a much wider range as well. The technology enables you to connect many computers to each other seamlessly and with appropriate security. You can also use it to connect them to other wired networks.
What would you need to put in place a good Wi-Fi network?
The essential elements are an access point that is typically in the form of a LAN receiver and is also referred to as the base station. You then have Wi-Fi cards that can easily accept as well as relay signals. These cards can be fixed internally or externally to a laptop or desktop respectively. Certain safety features like firewalls as well as anti-virus programs need to be installed so that hackers are not able to get into the system and cause damage.
What are the limitations or disadvantages of this system?
Firstly, you could experience some interference in the airwaves that could reduce the performance levels. Secondly, the power consumption is much higher and that could push up your maintenance or operating costs. The limited range could also be something that may not appeal to many users.
However, considering that any Wi-Fi enabled gadgets like the PC, cell phone, MP3 player and the PDA can be connected to the internet at hotspots, the convenience of this technology is making it very popular. There are many hotspots that are being created by establishments like malls, cafes, restaurants, airports and other such public places so that users can do their work on the internet and do not have to depend on a wired connection.
It therefore appears that Wi-Fi technology will only become more and more popular in the coming years.