Central IT Services are responsible for the network-wide wireless service.
Wireless hotspots are located throughout Warwick Business School, in addition to other locations across campus.
Your device will likely pick up a number of different hotspot services, each for different groups of users (e.g. Staff & Students versus Conference Guests). Students and staff should use the hotspot-secure service. This can be a bit of a pain to set up on some devices (!). Setup instructions are here. You should log in with your university ITS account (typically something like u1234567).
Eduroam is a service that is desgined to allow academics and students to access the Internet at different institutions across the UK (and increasingly the world) using their home institution's username and password.