PowerPoint is a widely used presentation software that has received criticism for potentially inducing stupidity in presentations and degrading communication quality. However, others argue that PowerPoint can be used creatively to produce visually appealing presentations. Before PowerPoint, people gave presentations using technologies like magic lanterns, slide projectors, and film strips. In 1985, most presentations were still created on physical slides rather than personal computers, though there was one early DOS presentation program and Harvard Graphics. PowerPoint has since become a dominant presentation software.