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.
Introduction to Customer Segmentation. Customer segmentation is the practice of dividing a companyâs customers into groups relevant to a particular business.The goal of segmenting customers is to decide how to relate to customers in each segment in order to maximize the value of each customer to the business.ntroduction to Customer Segmentation. Customer segmentation is the practice of dividing a companyâs customers into groups relevant to a particular business.