Besides the big Library Catalog Search, you can search smaller, individual databases of articles, media, and other materials.
All HCC Libraries databases can be accessed—and sorted by subject, type, or alphabetically—via the following link:
My selected list is on the second page of this guide, and also linked here:
Find journals in HCC Libraries databases.
Short Answer: Both! This brief (00:01:39) video from Ronald Williams Library explains:
Use Publication Finder to find which databases include coverage of specific journals. Results include date range of coverage and links to the journal content in the databases. Search journal titles, subjects, and ISSN/ISBNs. Browse journal titles alphabetically. Browse disciplines to find associated journals.