HELP! * GREY=local LOCAL HTML version of Foils prepared April 25,1995

Foil 7 What is so important about Digital ?

From Implications of NII for Kids Jamesville-Dewitt School Districy Science Week -- April 25,1995. by Geoffrey C. Fox * See also color IMAGE
Analog as in current Cable Satellite or broadcast TV or radio represents informations by WAVY SHAPES
  • Shapes can be arbitrary and if changed (distorted) canNOT be easily corrected
Digital as in current computers represents everything by NUMBERS and uses Òerror-correctionÓ so that you receive EXACTLY what is sent with NO distortion of text or images
So information is more precise
  • Can do online banking
and looks better -- your great art piece is not distorted or the medical picture is transmitted without adding or subtracting tumors/pathologies etc.

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