Microsoft Windows still No. 1 Server Operating Systems, IDC reports

According to IDC’s fourth-quarter global server data on February 25, Windows is still the dominant player. The fourth quarter 2009 was more robust than the third, in terms of total revenues and units. Windows’ share of the total stayed constant unit-wise, yet declined, dollar-wise, when compared to the previous calendar quarter. Here’s IDC’s OS share […]

According to IDC’s fourth-quarter global server data on February 25, Windows is still the dominant player. The fourth quarter 2009 was more robust than the third, in terms of total revenues and units. Windows’ share of the total stayed constant unit-wise, yet declined, dollar-wise, when compared to the previous calendar quarter. Here’s IDC’s OS share data break out:

Units (Q3 2009/Q4 2009):

Windows    1,248,200 (73.9%)     1,434,225 (73.9%)
Unix                72,001 ( 4.3%)           84,851 ( 4.4%)
Linux            357,491 (21.2%)         412,041 (21.2%)
Total           1,688,859                   1,941,966

U.S. Dollars (in millions) (Q3 2009/Q4 2009):

Windows   $4,487   (43.0%)           $5,393 (41.6%)
Unix           $2,803   (26.9%)          $3,877  (29.9%)
Linux          $1,537   (14.7%)          $1,905 (14.7%)
Total          $10,423                        $12,952

[Source]