SCORM in one paragraph
SCORM stands for Sharable Content Object Reference Model. In practice it's a packaging convention: take your course (HTML, JavaScript, images, audio, the lot), wrap it with a small XML file that describes the structure and tracking rules, and zip it. Any LMS that "supports SCORM" knows how to read that zip, host the contents, and exchange a few standardised messages with the course while a learner is using it — completion status, score, time spent, and a small bag of "where did the learner leave off" data.
You don't need to know the spec. You need to know three things: the file your converter produces is a single .zip; your LMS admin uploads that zip into a course slot in the admin UI; once it's live, learner activity flows back into the LMS reports. Everything else is plumbing the LMS handles for you.