2008-01-09

Some misused terminologies

// This post will be kept up to day
Resolution
is now misused to count the number of pixels of the vertical and the horizontal sizes of a screen. But in fact, this just word, "resolution", means the ratio between the actual number of dots in one dimension and the physical size(measured in inches) of of the screen. Dot comes from the typesetting area.

When talking about DPI of screens, we can take one dot = one pixel. When the screen dimensions are 1280x1024(that is, 1280 pixels wide and 1024 pixels height) and the physical diagonal size of the screen is 17", the size of one pixel is about 0.26mm. Thus the pixel size is fixed. So when the DPI is increased, more pixels are used to represent one (in fact virtual) inch, so the font(measured in points, 1 point = 1/72 inch) will become larger...

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