本文发表在 rolia.net 枫下论坛the core courses in CS of UWO are in X0X format. For example, 401, 208.
Normally X1X, X2X are not core course. Courses such as Fortun, Unix, Database
are NOT core courses. A noncore course is the course that you can't use it
to build up your credits. For example, a course named "English 101" is opened
by English department. But English 101 is not for students from English
department. Think about English 4 level certification in china, it is not for
English student. Back to computer science, the course "Unix" is not for
CS students either. CS students should take "Operation System". O2 is like Unix. It
is an application rather than operation system theory. CS students can't gain credits
by taking application courses. That's why no school teaches MCSE. And fortune is
named "scientific computing" if I remember correctly. It is for Math students.

If you read the course description correctly, you will understand the difference.
Or think in China's system, core courses are Bi4 Xiu1 Ke4 and others are Xuan3
Xiu1 Ke4.

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