IDC Dollarwise, Windows still leads the server m

The researchers at Global Information Corp. (IDC) released their latest globally server marketplace reveal data this week. As was true inside the last quarter of 2009,  Windows servers are far and away the leader in reveal as measured by of percentage of revenue, the firm discovered.
While Windows’ reveal was up slightly, to 42.1 percent of server OS share by revenue, Linux was also up, reaching 17 percent in Q4 2010, according to IDC. Unix’s reveal was down, hitting 25.6 percent share, IDC said.
The fast-rising star inside the server OS space was IBM’s z/OS mainframe operating system, IDC reported. A year ago, IDC didn’t break out z/OS’s share by revenue, but within the last quarter of 2010, that number was 11.3 percent.
Here are the IDC breakouts:
Server OS share (by proportion of income) for Q4 2010
z/OS 11.3
Linux 17.0
Windows 42.1
Unix 25.6
Server OS reveal (by proportion of revenue)for Q4 2009
z/OS (not available)
Linux 14.7
Windows 41.6
Unix 29.9
IDC noted that factory revenues for the fourth quarter of 2010 were up 15.3 percent year over year, to $15.0 billion. Shipments for Q4 2010 hit 2.1 million units. IDC said Q4 2010 marked the highest quarterly revenue in the server market in three years.