1 -*- mode: outline; coding: utf-8 -*-

     2 

     3 * dpi

     4 

     5 dots per inch.

     6 

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

     8 

     9 * ppi

    10 

    11 pixels per inch, pixel density.

    12 

    13  Inch  Resolution  ppi

    14   17"   1280x1024   96

    15   19"   1280x1024   86

    16   19"   1600x1200  105

    17   21"   1600x1200   95

    18    2"    240x320   196

    19 

    20   http://en.wikipedia.org/wiki/Pixels_per_inch

    21 

    22 * bpp

    23 

    24 bits per pixel, color depth.

    25 

    26  * 1 bpp, 2 colors (monochrome)

    27  * 2 bpp, 4 colors

    28  * 3 bpp, 8 colors

    29  * 8 bpp, 256 colors

    30  * 16 bpp, 65,536 colors ("Highcolor" )

    31  * 24 bpp, 16.8 million colors ("Truecolor")

    32 

    33   http://en.wikipedia.org/wiki/Color_depth

    34 

    35 * Display resolution.

    36 

    37   Name   Megapixels   Width x Height

    38   CGA     0.064         320×200

    39   EGA     0.224         640×350

    40   VGA     0.3           640×480

    41   SVGA    0.5           800×600

    42   XGA     0.8          1024×768

    43   SXGA    1.3         1280×1024

    44   UXGA    1.9         1600×1200

    45   WUXGA   2.3         1920×1200