What are the WEED-OUT courses for COMPUTER SCIENCE at the U of M?

<p>The courses that are basically designed to be hard/ fail most of the students in the class
Have heard every major has them, what are the ones for Computer Science?</p>

<p>Which CSCI courses?
please give the number (for example: CSCI1901) of the course or the name of it</p>

<p>I have heard things (and this about any college in general) like it's the first programming courses that are weed-out courses --is this true at the U of M?</p>