 a librari manag game report project although game profession educ widespread decad method number field hundr year it origin trace simpl war game militari train real thing unavail danger in time game sophist larg electron comput handl complex calcul involv sinc 1956 well-develop manag game introduc techniqu spread rapidli wide varieti disciplin todai level educ primari school class cours experienc profession men women on main game explos rapid develop sophist manag techniqu simul mathemat model rapid advanc comput technolog 