Unfortunately - not all of the US tech worked and they had to revert to paper/pen methods. See this CNN story for more info: http://money.cnn.com/2009/07/20/technology/GPS_census/index.htm?section=money_technology
Brazil have been building up this for several years by trialling the tech on previous surveys and they can say that it is a wholly digital census.
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Unfortunately - not all of the US tech worked and they had to revert to paper/pen methods. See this CNN story for more info: http://money.cnn.com/2009/07/20/technology/GPS_census/index.htm?section=money_technology Brazil have been building up this for several years by trialling the tech on previous surveys and they can say that it is a wholly digital census.