Base-two arithmetic, which uses only 1s and Os to represent numbers. 0001 represents 1 decimal. 0010 represents 2 decimal. 0011 represents 3 decimal, and so on. A binary digit - either a 1 or a 0.
Scanners typically use multiple bits to represent information about each pixel of an image.
A 1-bit scan can store only black and white information about a pixel. A representation of an image in row and column format in which each individual pixel is represented by a number. A single bit or up to as many as 32 can be used with each increment representing a larger amount of gray or color information about the pixel. A memory buffer that can hold images and text so that they can be freely exchanged within and between Macintosh applications. A feature found in many image edit programs that allows Gray values in selected areas to be changed, one value at a time, from the current value to a darker one.