Dot is a small round mark, rather the smallest point that is usually created with any pointed instrument. In art and designing, dots are considered the basic building block of an artwork. It is the simplest element of art and drawing. Dots establish relationship with the space around it. All other art work such as painting, drawing etc is a combination of dots and lines.    Pointillism is a painting style in which a picture or a drawing is made using small colored dots. In computer and graphics, the term 'dot' is used to refer to a pixel or the 'periods' that are used in URLs and email IDs.