Microsoft PowerPoint is a

Microsoft PowerPoint (or simply PowerPoint) is a presentation program, created by Robert Gaskins and Dennis Austin at a software company named Forethought, Inc. It was released on April 20, 1987, initially for Macintosh computers only. Microsoft acquired PowerPoint for $14 million three months after it appeared. This was Microsoft's first significant acquisition and Microsoft set up a new business unit for PowerPoint in Silicon Valley where Forethought had been located.

Source : wikipedia.org