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.
From Wikipedia, the free encyclopedia. Market segmentation is a marketing strategy which involves dividing a broad target market into subsets of consumers, businesses, or countries who have, or are perceived to have, common needs, interests, and priorities, and then designing and implementing strategies to target them.emographic segmentation divides markets into different life stage groups and allows for messages to be tailored accordingly. A variant of this approach known as firmographic or feature based segmentation is commonly used in business-to-business markets (itâs estimated that 81% of B2B marketers use this technique).