Question

21.PowerPoint presentation is known as a document

Answer 1

Answer:

Yes it is known as Presentation Graphics for Overhead Projection

Answer 2

Answer:

ans: PowerPoint was created by Robert Gaskins and Dennis Austin at a software startup in Silicon Valley named Forethought, Inc. ... Gaskins produced his initial description of PowerPoint about a month later (August 14, 1984) in the form of a 2-page document titled "Presentation Graphics for Overhead Project