This method of creating an image out of tiny dots is called raster. The speed with which the beam of electrons scans an image onto the screen per second is called the refresh rate. If the image seems to flicker, the refresh rate should be higher. The number of pixels that make up your screen is called the resolution. The higher the resolution, the greater the number of individual dots that make up the screen, and the finer or more detailed the image.
Different monitors can also support a different number of colors.
A monitor in 8 bit mode can use 256 colors. For text this is not very important, but for pictures or graphics it is extremely important. Standard printers can handle only 8.5 x 11 or 8.5 x 14 paper. Paper is placed in a paper tray at the bottom of the printer. To print on a larger piece of paper, use a plotter.