Difference between Categories and Channels
There are several differences between categories and channels.
Categories are public and can be accessed by anyone on the interwebs. Categories can also be found on the top navigation bar.
Channels could be found in the user menu, under "My Channels". You will need to be added as a member of a channel by the channel's manager before you are able to see or participate in any private channels. Channels are mostly for internal users of KPU. Users would need to be logged in to view any of their channels.