It was called "presenter"
PowerPoint is the original name for the Microsoft product. Before it was purchased by Microsoft in 1987, however, it was called Presenter by its developers, Forethought, Inc.
The default file name is Presentation 1 The default file extension is .pptx
they are called "cells"
Master1
It is a slide show or a presentation.
.pptx
if it's a new PowerPoint version, it has a file name of .pptx, but in general, it's called a PowerPoint.
.pptx
Microsoft PowerPoint.
.pptx is for Pwerpoint 2007 and onwards, including Powerpoint 2013.
The name of the software that consists of slides is Powerpoint.
powerpoint or keynote