With the developing society today, it is not too difficult to catch the images of parents or grandparents giving their children / grandchildren holding computers, phones, and movies whenever they want to comfort them. Rice or coax them to stop crying. At an older age, we can see images of babies sitting on their mounds on the computer screen with all kinds of programs from movies, music to games. However, many people do not understand the harmful effects of computers on young children when they use them beyond their parents' control. Excessive use of computers and phones can have a negative impact on their health and development.