My question in the title is general. To help you understand why I'm asking the general question, I'll add ... the SJR (SCImago Journal) ranking is based on the SCOPUS database. In both the Web of Science and SJR journal ranking, they categorize "Information Systems" under "Computer Science". I'm personally interested if there are some other major academic search engine, that categorizes "Information Systems", somewhere other than "Computer Science"?
However, to answer my question, please answer the general question, since that applies to many more SE users.