A PowerPoint presentation is a presentation created using Microsoft PowerPoint software. The presentation is a compilation of individual slides that contains data on a topic or information to be shared to an audience, and they are commonly used in business meetings and for training and educational purposes.
In regards to your question, the "SlideShow view" is used to deliver a presentation to your audience, the SlideShow view gives you the option to present slides on the full computer screen, exactly the way your presentation will look on a big screen when presented to a larger audience.