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KILLER APPLICATION: A computer program that is so incredibly useful, popular, and profitable that the company responsible for development achieves enormous growth in a relatively short time period. Several computer companies developed killer applications during the 1980s and 1990s, which contributed greatly to the computer revolution. The Lotus 1-2-3 spreadsheet program was among the first, and perhaps most noted, killer applications. This program motivated millions of businesses and consumers in the early 1980ds to purchase personal computers.

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OPPORTUNITY COST

The highest valued alternative foregone in the pursuit of an activity. Opportunity cost is a one of the most fundamental concepts used in the study of economics. An opportunity cost can be either explicit, usually involving a monetary payment, or implicit, which does not involve a transaction. Opportunity cost is also commonly termed economic cost.

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Today, you are likely to spend a great deal of time searching for rummage sales seeking to buy either a birthday gift for your grandmother or a T-shirt commemorating yesterday. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court!
"Think not of yourself as the architect of your career but as the sculptor. Expect to have to do a lot of hard hammering and chiseling and scraping and polishing. "

-- B. C. Forbes, founder, Forbes magazine

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