Over half of the population of Brazil lives in remote towns and villages. Many have no telephone connection. But the Brazilian power line network covers almost 95% of populated areas. And wherever there is power, there are usually television sets.
Digital television signals with java applications embedded within them were broadcast by the SAMBA project into the small Brazilian town of Barreirinhas which is 300km from the nearest major city. Some 30 Barreirinhas households, in the vicinity of a 3km power line, were equipped with special set-top boxes that enabled them to access the broadcast data. The technology was designed for use by non-experts, and developed for delivery at minimum cost to maximise access for people with low incomes.
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