1 If the black lines aren't visible on the external screen, the laptop screen may need to be replaced. 2  If the black lines are also visible on the external screen, the video card or motherboard may need to be replaced. 3  In some cases, a loose video card can cause problems with the monitor video.
1. segmentation - (embryology) the repeated division of a fertilised ovum. cleavage. embryology-the branch of biology that studies the formation and early development of living organisms. cell division, cellular division-the process in reproduction and growth by which a cell divides to form daughter cells.
Related Terms: Demographics; Target Market. Market segmentation is the science of dividing an overall market into customer subsets or segments, whose in segment sharing similar characteristics and needs.Segmentation typically involves significant market research and can thus be costly.pplying a market segmentation strategy is most effective when an overall market consists of many smaller segments whose members have certain characteristics or needs in common.