In the 1960s, computing scientists began to develop programs that could store pages of text in which words could be used to link to related pages. These systems were called hypertext and were developed further during the 1970s and 80s.
In 1987 Apple released HyperCard, a programming environment that allowed developers to link information stored in “stacks” of on-screen “cards” that combined text, images and sound . HyperCard is now considered to be a forerunner to the World Wide Web.