"There are other operating systems, each with its own niche. Two
of them, Linux and - to a lesser extent - BeOS, have received
plenty of publicity recently but do they offer a serious
alternative, for the individual or for businesses?
"The evidence suggests Microsoft does not need to be too
worried. Some customers are willing to try an alternative operating
system, which in certain cases might work better, or save them
money, but none has the universal appeal of Windows."