Answer:
If you are looking for a different type of GUI operating system then :
Linux or mac
if you are looking for a different type of operating system (non-GUI):
Command-line interface
Explanation:
Main points are key ideas that support a thesis and helps an audience understand and remember what is most important about a speaker's topic, while sub points are supporting points like <span><span>examples, definitions, testimony, and statistics that support or illustrate a speaker's main points.
</span>A preview is a list of main points and sub-points of a topic to include in a presentation</span>
Answer:
I would say it would be a cluster of related commands.
