Actually, Novell used to be the leading networking O/S for PC's. It used to own the market before Windows NT came along.
For some reason, the folks at Novell never put up a fight. Microsoft walked away with the PC networking market just like that.
Many Jamaican companies used to use Novell, but most have switched to Windows NT/2000 now. I still meet Novell 3.12 in some small family owned/operated companies. The ones that are still running DOS based applications like Accpac Plus.