Focus Definition and 203 Threads

FOCUS is a fourth-generation programming language (4GL) computer programming language and development environment that is used to build database queries. Produced by Information Builders Inc., it was originally developed for data handling and analysis on the IBM mainframe. Subsequently versions for minicomputers and such as the VAX and other platforms were implemented. FOCUS was later extended to personal computers and (in 1997) to the World Wide Web: the WebFOCUS product.

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  1. Ivan Seeking

    Is Bush's Vision for Space Exploration Grounded by Budget Cuts?

    http://www.nature.com/news/2004/040719/full/040719-19.html
  2. N

    Will a Lens's Focal Point Change in Water?

    what is the definiton of focus?if i put a converging lens or diverging lens in water,will the focus change? do you guys have msn? i have one.
  3. N

    How can we find the focus in a lens

    how can we find the focus ?thanks
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