Mac OS X, Safari and iPhone market share for Internet usage rose from February to March, according to the latest market share survey from NetMarketShare (http://www.netmarketshare.com).

According to the report, among operating systems, Mac OS X had 5.33% of the global market share in March, compared to 5.02% in February (that's global market share; in the US it's almost 10 %). Windows remains dominant with 91.58% as of March. That's down from 92.12% in February. Apple's highest percentage previously was 5.27% in October 2009, so March's number is an all-time high.

When it comes to browsers, Safari had 4.65% in March, while Internet Explorer had 60.65% Firefox had 24.52% and Chrome had 6.13%. That compares to, respectively, February percentages of 61.58, 24.23 and 5.61%, for the browsers.

The iPhone's market share also rose, according to Net Applications. The Apple device had 0.51% of the global market share in March compared to 0.50% in February. The iPod touch also had 0.11% of the mobile market share in March.

NetMarketShares' monthly surveys don't measure market share in terms of computer systems sold. Instead they sample data from visitors to some 40,000 web sites operated by their clients.