On 24 October 2016 at 03:15, Mouse <mo...@rodents-montreal.org> wrote: > > I disagree. I see nothing about "a single-user OS without background > processing" that would prevent a virus from infecting other programs, > even including the OS, when it's run, and potentially doing something > else as well.
Exactly. This. I agree. MS-DOS was a single-user OS without background processing, but it had legions of viruses. I don't think CP/M had TSRs as such... https://en.wikipedia.org/wiki/CP/M#TSR_.28Terminate-and-Stay-Resident.29_programs ... but that doesn't mean it was totally impossible to get into RAM and stay there, does it? -- Liam Proven • Profile: http://lproven.livejournal.com/profile Email: lpro...@cix.co.uk • GMail/Twitter/Facebook/Flickr: lproven Skype/MSN: lpro...@hotmail.com • LinkedIn/AIM/Yahoo: liamproven Cell/Mobiles: +44 7939-087884 (UK) • +420 702 829 053 (ČR)
