Recently I read a comment which led me to believe that some people has a misconception of what Wireless@SG can do. Basically, the gist of the comment was that Wireless@SG should be available on public transport (e.g. buses, MRTs) so that people can surf wirelessly while commuting.
I think the person is confused between what WiFi and 3G can do. Wireless@SG uses the Wi-Fi technology to deliver the Internet wirelessly. 3G is tagged to the telco mobile network and has nothing to do with Wireless@SG.
To put it simply... For those who has subscribed to broadband Internet at home, some of you may receive modems that could also support computers logging into the Internet wirelessly. You need to plug wires into the modem in order to connect to the Internet. That's similar to the technology that Wireless@SG is based on. Therefore, how could such technology be installed on buses and MRTs? Could you take your cable/ADSL modem and install it in your car so that you can have wireless access?
Some may say that someone has actually installed wireless Internet access in the taxi. That technology is however based on 3G (telco) and not Wi-Fi, which Wireless@SG is using. Why do they not use 3G instead of Wi-Fi? Look no further than the telco's data plan and you'll know the reason why. Note that Wireless@SG is free. :)
Many times I would have love to correct users that say technology can do anything and it's only a matter of time and cost. I disagree with that statement. Those who understands technology know that it's much more than that and there are a variety of factors that could affect a technology roll-out and its sustainability. Environment is one of the huge factor affecting such decisions.
Anyway, 3G also doesn't work very well when you're underground or in certain built-up areas. Why? Study IT and you may know the reasons behind it. :)
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