Kris,
Good topic! I should have found this earlier haha..
I think the availability of computers and internet is vital in any educational institutions, monasteries included. Why? Because in this days and age, people are connected via the cyberspace by using applications such as emails, sms, whatsapp, LINES, Viber and Facebook! Without these, we would not be in touch with the world.
Spreading Buddha's precious teaching via the internet is the most effective and efficient way.
Coming back to the issue of allowing understudies in monasteries to play computer games - well I think if it is well controlled to prevent them going into gambling games and over indulgence, it is a good way to learn how to use the computer and a form of relaxation. Just like in other schools.