There's a basic interactive + theory overview at http://homepages.inf.ed.ac.uk/jeh/Simjava/queueing/mm1_q/mm1_q.html http://homepages.inf.ed.ac.uk/jeh/Simjava/q

There's a basic interactive + theory overview at http://homepages.inf.ed.ac.uk/jeh/Simjava/queueing/mm1_q/mm1_q.html http://homepages.inf.ed.ac.uk/jeh/Simjava/queueing/mm1_q/mm1... (NB: via in-browser java applets, which most things have disabled by default just now)