Computer makers sold $17.7 billion worth of Windows servers
worldwide in 2005 compared with $17.5 billion in Unix servers,
IDC analyst Matthew Eastwood said of the firm's latest Server
Tracker market share report. "It's the first time Unix was not
top overall since before the Tracker started in 1996."
And in another first, fast-growing Linux took third place, bumping
machines with IBM's mainframe operating system, z/OS. Linux server
sales grew from $4.3 billion in 2004 to $5.3 billion in 2005,
while mainframes dropped from $5.7 billion to $4.8 billion over
the same period, Eastwood said.