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Over half of all current users ( 54 % ) of the Web use it as their preferred information source . The availability of technology , e-health and the Web make those systems far more effective . Start putting together the slides : text first , then draw some figures , add any formulae you may need and images that you grab either form the web or scan form the paper . Bring your laptop and your 802.11B wireless adapter ( i.e. Apple 's Airport Card ) , and you may browse the web or check your email . If anybody at the schools wants to browse the Web or read e-mail , the Unix server at the Telecentre should dial on demand .