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Wi-Fi Technology Overview
From Hi-Fi to Wi-Fi, as promoted by the Wi-Fi Alliance, Wi-Fi is the means of getting a hold of internet by identifying the available wireless equipment within the IEEE 802.11 requirement and counting several standard of wireless such as 802.11a, 802.11b and 802.11g. Wi-Fi is a tool specifically made for the electronics that uses little amount of electricity like mobiles. Personal Digital Assistants, notebooks/net books and a variety of accessories are intended to be compatible with Wi-Fi-. These days, we have mobiles that will have the capability of exchanging data from cellular networks to Wi-Fi networks during a phone conversation.
Wi-Fi Hotspot
Any site in which 802.11 (wireless) equipments is accessible for internet users is considered as a Wi-Fi hotspot. The use of wireless can either be unsecured (free) or password secured (chargeable and requires permission from the main owner). Laptop owners are the main users of Wi-Fi technology and some locations like airports, coffee shops, and so on, usually provides free internet access as part of their strategy to attract more customers whose purpose is for business or social networking.
Wi-Fi internet access can be possible when your PC is PDA enabled or has Wi-Fi capability. If this not the case, then you need to have a device that connects the PC card slot or USB port with wireless to add internet connectivity.
For Wi-Fi access, you must to have an internet connection from your local internet service provider. These Providers usually give guidelines every time the computer is trying to access the internet using a Wi-Fi. Otherwise, you can start using the Wi-Fi by ensuring that you have Wi-Fi inserted Wi-Fi card in your computer slot to start enjoying Wi-Fi access anywhere you like in limited range.
Is Wi-Fi the same as Bluetooth?
Wi-Fi and Bluetooth both have a lot of difference however Wi-Fi is much better in its functionality and features. Both these devices run under the different set of standards. Wi-Fi runs under 802.11 standards while Bluetooth runs under the IEEE standards 802.15.1. This indicates that Wi-Fi and Bluetooth are not interchangeable nor can work together. In addition to that, Wi-Fi technology has a better speed in terms of uploading and downloading that make it a superior substitute for Ethernet (802.3) systems. Bluetooth on the other hand does not need high electricity making it suitable for diminutive machines like PDAs.
What’s happening in a Wi-Fi network?
Computer can only access Wi-Fi using network cards. There is also need of wireless router which is connected to the Internet by means of a modulator-demodulator which usually comes in a cable or Digital Subscriber Line modulator. A distance of 200 feet or within 61 meters range allows the user to access the internet but for better connectivity, distances of 100 feet or within 30.5 meters or less are advisable. Wireless signal boosters sold in retail stores also helps in expanding the wireless network coverage.
When it comes to communication, radio is the means used by Wi-Fi technology which is basically running at a frequency of 2.4GHz. Machines run by electricity and "Wi-Fi Certified" are sure to work interchangeably no matter what the trade name is.