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Editing a presentation.
slides
You can set your defaults to specify either a portrait or landscape orientation for slides in a new presentation.
Slides.
A slide is a single screen of a presentation, and every presentation is composed of several slides. The slides contain the information you want to communicate with your audience.
One
As many as are necessary.
The purpose of presentation is to create slides. A slide can be used to present something interactively.
Microsoft Power Point is a presentation software. It can be used to create presentations or slides.
You can copy slides and paste them. The complete slide would be replicated again.
You go to the Master Slide and insert your footer there. It will then be on all slides.
The master slide is used as a template of what will appear on all of the slides. The master slide could contain things like a background that will be used on all slides, or a company logo. The master slide is also where you can edit the fonts that will be used throughout the presentation, and any other layout settings.