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The last few decades have spread computer literacy beyond anything that could have been imagined in the last few years. Although we now find our families calling on us for IT support 30 years ago it would have been inconceivable that that requirement could even exist. We now have old ladies in their 80s collaborating to write books with their laptops. It's a pity the bloody printers can't run off a couple of hundred copies without some of the pages being bound upside down but that's a separate matter.