The eye-popping chart above (via Fortune) shows Apple is on course to take control of global market share for portable computers (laptops, notebooks, and tablets) in the second quarter of 2011 – but that’s only as some analysts switch to accounting iPads as computers. Deutshe Bank’s Chris Whitmore, author of the chart, describes his findings:

Many will be quick to point out the spike is due to taking iPad sales into consideration, a device that many analysts debate shouldn’t be considered as a competitor to notebooks and other portable PCs. However, Apple is steadily gaining ground on Dell, Hewlett-Packard, and Microsoft even without the iPad. Whitmore explains: