I see people talk about Linux all the time on Foo, and even though I don't post often, it got me wondering why people like it so much.
From what people tell me, using auto analogies to compare operating systems, buying versions of Windows are like buying new cars with some of the cars being lemons, while Linux is like someone handing you a bunch of parts, from a cylinder head here, to an exhaust manifold there, putting everything together, and hoping you can drive out of the driveway without something blowing... a cool kit car for people who want to hack stuff, but not street legal, and not anything one would ever want to drive seriously (or run a business) on.
I am not trying to start a flamewar, but just genuinely curious of what separates Linux from say MS-DOS, or Windows for getting work done. I also wonder how hard it is to find antivirus, firewall, and anti-malware software for Linux, as I never see any anti-spyware software advertised. I assume Linux needs to have its own equivalent of Norton Antivirus so people can use it on the Net with some security.