I’ve noticed that quite a few people are confused by wireless internet media, more specifically 3G and WiFi. Every time I try and explain it, I end up drawing a rough sketch outlining the differences. Here’s a neat diagram showing the difference between the two:
after u download the diagram below note
This is a good topic because I have also noticed many people who don't quite understand the difference between the two. The way I explain it to them is that 3g and wifi are two different wireless technologies that both connect you to the internet.
3g is through your cell provider or a carrier of some type. You have to pay for it and have no control over it unless you work for the provider. The only thing you have any degree of control over is your device, and paying the bill.
Wifi is the Wifi Alliance's marketing term for IEEE 802.11 standards. Wifi is something a user may have more control over, it plugs into a wired lan at home or the office and is an extension of a Local Area Network, not a carrier like 3g.
What about speed? There are differences between the 2.
yes Hollywood has got a point and so are you ,he pointed to speed .the both are two wireless technologies but why Wi-fi is faster than 3g.and can everybody listed all the differences .??
Actually, the guy to ask would be John. I think he works with 3g as part of his job. He would really know all of the differences. frequency and speed and carrier base are the major differences. The fact that 3g opperates in Licensed spectrum where wifi does not is also a difference.
The basics of it is, is that 3G comes from a mobile phone network (similiar to 2G,GPRS and wireless (wi-fi, 802.11a/b/g/n) is not. There are differences in modulation, wave length and licensing. But that's about it - they operate at different frequencies hence are governed in different ways.