WHAT IS WI-FI??????????????????// Wi-Fi is one of the most ubiquitous wireless communications technologies in use today, primarily because it is easy to install, easy to use and inexpensive. Wi-Fi was originally designed as a way of extending internet connections wirelessly within an enterprise. However people soon began installing Wi-Fi Access Points at home and in public Hotspots to give convenient internet access to laptops, which ended up with Wi-Fi chips installed as standard. Today there are hundreds of millions of devices which use Wi-Fi including tablets, smart phones, TVs and set tops. There are millions of public hotspots and many hundreds of millions of home and enterprise access points. The Wi-name Fi is reserved for the IEEE 802.11 standards – so far A, B, G and N, with more on the way, and use 2.4 GHz and 5 GHz unlicensed spectrum bands, with more being considered up to 60 GHz. Wi-Fi today is managed and policed by the Wi-Fi Alliance. Wi-Fi reach varies with the power of the signal and the spectrum used, but will typically reach a few hundred feet and current generation devices will provide between 50 Mbps and a 100 Mbps shared between connected users.
Posted on: Wed, 31 Jul 2013 01:54:14 +0000