Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!know!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!cica!iuvax!ux1.cso.uiuc.edu!ux1.cso.uiuc.edu!m.cs.uiuc.edu!gillies From: gillies@m.cs.uiuc.edu Newsgroups: comp.sys.mac.system Subject: Re: MacClassic & System 7.0 Message-ID: <70500035@m.cs.uiuc.edu> Date: 20 Sep 90 19:06:00 GMT References: <12280@accuvax.nwu.edu> Lines: 16 Nf-ID: #R:accuvax.nwu.edu:12280:m.cs.uiuc.edu:70500035:000:842 Nf-From: m.cs.uiuc.edu!gillies Sep 20 14:06:00 1990 The "4MB Bottleneck" may soon become as bad as the "640K" bottleneck on the IBM PC's. Mathematica is nearly unusable with only 4 megs of memory -- you run out of memory after 10 minutes of use. I expect that system 7.0 will make mathematica UNUSABLE on a 4Mb machine. And we can expect things to get much worse in the future. If a certain Macintosh cannot support virtual memory, then it should be possible to expand the main memory to 8-12 megabytes, to compensate for this deficiency. But the mac SE is designed with a built-in 4Mb limitation. While this originally was a selling point of the II series, it will soom become an anchor around Apple's throat. Don W. Gillies, Dept. of Computer Science, University of Illinois 1304 W. Springfield, Urbana, Ill 61801 ARPA: gillies@cs.uiuc.edu UUCP: {uunet,harvard}!uiucdcs!gillies