IE7 or IE8 introduced multi-process sandbox in Vista (not on XP). Afterwards, Google did the same with their first Chrome release. In both IE 8-11 and Chrome

IE7 or IE8 introduced multi-process sandbox in Vista (not on XP). Afterwards, Google did the same with their first Chrome release. In both IE 8-11 and Chrome 1+ there are several tabs per sub-process. Chrome comes even with its own "Taskmanager" where you can see which tab sits in which process and how many resources it takes. You can find the Taskmanager in the Chrome's "Tools" sub-menu.