Questions involving programming can be on topic

Let's say though there was an operating system that was made to educate users on software development, that required basic knowledge of C. Would questions be on topic here if C was often how you went about accomplishing those tasks? What about if the tasks require no knowledge of programming concepts?

In general, questions about an operating systems can be on topic, as long as they stay within the rest of the guidance (ie no software/hardware requests, no "code writing service" requests etc). This holds true even if there is programming involved.

See for example this answer in relation to batch programming:

There will always be overlap in what a scope allows. Personally, I use Stack Overflow just for questions that are purely programming based, that will be compiled into a program. Batch files are just lines of commands, freely editable, and user accessible. You do not need to be a professional programmer to do batch programming.

Consider your audience

Your unstated second question -- whether those particular questions would be a good fit for Super User -- as to how the community would respond to the questions themselves is a bit trickier to answer.

Questions with a narrow focus are not as well-received as questions with broad applicability*. Certain operating systems attract poor questions because -- if you'll forgive the generalisation -- people don't invest sufficient time to understand them to ask a good question in the first place. A good question is generally well-researched, shows what has been attempted and is answerable.

^{* there is no close reason for being too narrow (as opposed to too broad), but niche questions tend to attract less views, votes and answers}