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Written by Oleksandr Gavenko (AKA gavenkoa), compiled on 2017-01-30 from rev ccaa2f364422+.

Measurement

dpi

Dots per inch.

http://en.wikipedia.org/wiki/Dots_per_inch

ppi

pixels per inch, pixel density.

Inch Resolution ppi
17" 1280x1024 96
19" 1280x1024 86
19" 1600x1200 105
21" 1600x1200 95
2" 240x320 196
http://en.wikipedia.org/wiki/Pixels_per_inch

lpi

lines per inch.

http://en.wikipedia.org/wiki/Lines_per_inch

bpp

bits per pixel, color depth.

  • 1 bpp, 2 colors (monochrome)
  • 2 bpp, 4 colors
  • 3 bpp, 8 colors
  • 8 bpp, 256 colors
  • 16 bpp, 65,536 colors ("Highcolor" )
  • 24 bpp, 16.8 million colors ("Truecolor")
http://en.wikipedia.org/wiki/Color_depth