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How many of you have used[br]an electronic spreadsheet,

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like Microsoft Excel?[br]Very good.

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Now how many of you have run a business[br]with a spreadsheet by hand,

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like my dad did for his small[br]printing business in Philadelphia?

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A lot less. Well, that's the way[br]it was done for hundreds of years.

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In early 1978, I started working[br]on an idea that eventually became VisiCalc.

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And the next year it shipped[br]running on something new

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called an Apple II Personal Computer.

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You