Furthermore, other forms of attack have been favored on particular platforms -- like Unix -- and there have been Unix viruses.

CNN: Technology - Analysis: Understanding viruses

That software "glue" means that IBM can use its dominance in the mainframe arena to win x86 and Unix customers away from competitors like Hewlett-Packard, which recently declared that it sells more x86 servers than any other vendor, and Dell.

FORBES: Magazine Article

The new NT version of Sendmail, like its Unix counterpart, includes strong spam-blocking capabilities.

CNN: Sendmail brings open source technology from Unix to NT

PC-like servers running Windows are cheaper than Unix boxes.

ECONOMIST: Software