<p>There are two paths to a master’s degree in course 6 at MIT: for MIT undergrads, there is the MEng program, and for MIT undergrads and others, there is the PhD program (which would lead to an MS if you complete the requirements for an MS and leave before completing PhD qualifying exams).</p>
<p>The topic of a master’s degree is whatever you do your thesis research on – if you want to do a CS master’s, you would choose an advisor who does research in CS. There is no need to name the master’s program differently according to the research topic you want to pursue.</p>