Comments on a Paper by Wallace and Mason CACM April, 1970 Heess Jr., W. F. page-on-demand, demand paging, time-sharing multiprogramming, Markovian computer models, scheduling strategies, operating systems, memory management 2.44 4.32 4.39 6.20 6.21 CA700415 JB February 13, 1978 2:36 PM 2069 5 2069 2069 5 2069 2069 5 2069