哥大非cs选cs的课的难易程度？

cs官网上看到的：Important Note for Non-CS/CE Students Regarding Spring 2018 Registration: Due to high demand, Computer Science courses at the 4000-level and above are only open to Computer Science and Computer Engineering students during early registration periods. (COMS W4111 and CSOR W4231 are also open to IEOR students who are required to take these courses). We will open COMS courses to students in other departments on January 9. There are no exceptions to this policy.


我自己想去哥大or然后走data science方向，完全不排斥转码，但是感觉有些不现实。本科阶段有个cs minor，上过oop Java，data structure，computer organization，algorithm，internet service and protocol，但是没有任何开发经验。如果可能的话想上一上operating system，software engineering，database(COMS W4111，感觉应该可以)，nlp。有没有哪位小伙伴了解实际的选课情况以及选上的可能性？


另外，也想求一些cs方面的选课建议。


感谢感谢万分感谢！