12. Name a graphics system or API set for Linux:
----------------------------------
  160.33.66.118: GTK
 63.246.173.244: DirectFB
  160.33.66.118: OpenGL
   210.94.41.89: GGI
 71.117.239.229: OpenGL
  202.101.8.193: KDE
   69.238.142.7: GTK
  66.93.224.205: X11
   57.67.28.231: GTK
  84.150.106.35: X11
 203.141.89.145: X11
    57.67.161.6: DirectFB
    62.252.0.11: FrameBuffer
    57.78.11.38: DirectFB
 81.138.115.145: SDL
 192.100.104.17: DirectFB
  193.120.90.36: DirectFB
 82.171.189.134: DirectFB
    57.78.11.38: GTK
  134.134.136.2: OpenGL
  15.235.249.72: GTK
  15.235.249.71: SDL
   15.238.95.37: GTK
 150.150.71.119: GTK
   137.153.0.41: proc fs
   137.153.0.40: DirectFB
   137.153.0.42: DirectFB
 161.85.127.153: X11
 193.131.176.54: X11
 193.131.176.54: OpenGL
  192.88.158.50: GTK
   202.32.86.15: GTK
   210.94.41.89: OpenGL
   210.94.41.89: NanoX
  58.226.252.78: GTK
 202.228.229.72: GTK
