If an item is monochrome, that means it uses only one color on a differently colored background. In a monochrome monitor, these pixels have only one color phosphor. The picture is created with, say, black dots (or lines) against a white background. A monochrome image pixel can have two values, on (white) or off (black), and this can be represented by 1-bit as either 0 or 1. Most printers are monochrome, meaning they only print black toner on white paper.
If an image is One-bit that means 1-bit of information is sent to the pixel on the screen. That bit can turn the pixel on (white) or off (black). All 1-bit images are black-and-white. On amonochrome monitor, the pixels can’t deal with more than just that one bit of data so that’s all you can ever get is black and white.
Dinesh Thakur holds an B.C.A, MCDBA, MCSD certifications. Dinesh authors the hugely popular