Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!snorkelwacker!apple!Apple.COM!lsr From: lsr@Apple.COM (Larry Rosenstein) Newsgroups: comp.sys.mac Subject: Re: Multitasking and interactivity issu (sense) Message-ID: <6912@internal.Apple.COM> Date: 26 Feb 90 22:21:46 GMT Sender: usenet@Apple.COM Distribution: na Organization: Objects-R-Us, Apple Computer, Inc. Lines: 20 References:<105048@<1990Jan13> <126900151@p.cs.uiuc.edu> <18121@eerie.acsu.Buffalo.EDU> <6840@internal.Apple.COM> <18243@eerie.acsu.Buffalo.EDU> In article <18243@eerie.acsu.Buffalo.EDU> jmpiazza@sybil.cs.Buffalo.EDU (Joseph M. Piazza) writes: > flies!), so from experience I know that it multitasked. I know it had some > hardware protection though I wasn't sure of the extent of its nature. The Lisa had a custom MMU which provide protection between processes. > Did the original Lisa do this also? Yes. The main difference between the original Lisa and the Lisa 2 was the floppy disk drives. Larry Rosenstein, Apple Computer, Inc. Object Specialist Internet: lsr@Apple.com UUCP: {nsc, sun}!apple!lsr AppleLink: Rosenstein1