According to metrics firm Net Applications the use of Windows Vista is growing while Mac OS X usage dropped a bit.
In June the new operating system from Microsoft accounted for 4.52% of the market. Windows Vista's marketshare has grown from 0.93% in February to 2.04 in March, 3.02% in April and 3.74% in March.
The firm says usage of Mac OS X accounted for 6.22% in January, with a peak of 6.46% in May, but now it has fallen back to 6%.
Shifts from the Mac OS X running on older PowerPC processors to the edition running on Intel CPUs have been constant, but according to Net Applications' data, the computer maker is not making new Mac converts. In January, for example, the PowerPC version of Mac OS X was reported by 4.34% of the machines Net Applications tracked, while the Intel version accounted for just 1.88%. June's numbers showed that the PowerPC edition of the operating system still held the lead, but the gap had narrowed considerably: Older versions were pegged at 3.52% and Intel editions at 2.48%.
Likewise, Vista's increases have come at the expense of Windows XP and Windows 2000, both of which have dropped in usage since January. Windows XP, for instance, accounted for 85.02% of all machines that month but was down to 81.94% in June. Windows overall total has remained flat, ranging between 90.01% and 90.46% through the first six months of the year.