harâ¢binâ¢ger. 1. one that announces or foreshadows the approach of someone or something; forerunner; herald. 2. a person sent in advance of troops, a royal train, etc., to provide or secure lodgings and other accommodations. 3. to act as harbinger to; herald the coming of.
Though many people say that technology is useful and helps society, in reality, technology is unhealthy and can cause social and academic problems.
Technology can be part of a healthy childhood, as long as this privilege isn't abused. For example, preschoolers can get help learning the alphabet on public television, grade schoolers can play educational apps and games, and teens can do research on the Internet. But too much screen time can be a bad thing: