Path: utzoo!attcan!uunet!seismo!sundc!pitstop!sun!oliveb!3comvax!jimc From: jimc@vax.3Com.Com (Jim Christy) Newsgroups: comp.sys.mac Subject: Re: Virtual Memory INIT Summary: memory maps Message-ID: <2196@3comvax.3Com.Com> Date: 18 Jan 89 20:27:32 GMT References: <8901151644.AA17944@Portia.stanford.edu> Organization: 3Com Corp., Santa Clara, CA Lines: 17 In article <8901151644.AA17944@Portia.stanford.edu>, name@PORTIA.STANFORD.EDU (tony cooper) writes: > According to my calculations 2^24 is 16 Megabytes. So why is the virtual > memory INIT limited to just 8Mb? Then the next question is: Why stop at > 2^24? Why can't the virtual memory be as big as the disk? If no program > uses more than 2Mb then you could have 40 such programs on the disk with > each program being swapped into the 4MB of ram whenever it is it's turn > to get some CPU time. ... > > Tony Cooper The ROM on a Mac II is mapped in starting at 8 Meg. Jim Christy 3Com Corp.