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How many of you have used
an electronic spreadsheet,

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like Microsoft Excel?
Very good.

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

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

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

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

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And the next year it shipped
running on something new

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called an Apple II Personal Computer.

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You