Tardis has had quite strong connections with CompSoc over the years and a number of former CompSoc committee members and students have ended up in Tardis. Although Tardis and CompSoc both have a lot in common, being the two big computing groups on campus, they serve different and complimentary roles in the University community.
Tardis provides CompSoc with a number of services. Tardis currently hosts the CompSoc server 'Jupiter' who's primary role is to host VMs that run the CompSoc website & Minecraft server (Europa)
CompSoc previously had a mailing list on the Lists Service but it appears to be deactivated at the moment.