...mouse Dr. Douglas C. Engelbart (born January 30, 1925) is an American inventor best known for inventing the computermouse. Englebart’s mouse was made of wood and had two wheels connected to transducers that produced analog voltages...
http://www.computerweekly.com/galleries/233745-1/The-first-ever-mouse.htm
Binary raster objects can contain a scan of black lines on white paper, the results of thresholding a byte-oriented raster object into two data ranges, a threshold of a particular ...
http://faridesm.xm.com/Glossary.pdf