The fact that an OS supplies system calls is mostly irrelevant – it is a separate concept (not listed in the original article) which we usually call “Software Libraries”. But innovation #2 did not list the standard libraries as a point of an Operating System – the process isolation is the point. Libraries had been in use long before.
I definitely agree that hardware virtualization is going the long way around, and that more refined process isolation is the way to go. The Operating System was made for this, and it should continue to do this; there is no architectural need for an additional level of isolation.
I definitely agree that hardware virtualization is going the long way around, and that more refined process isolation is the way to go. The Operating System was made for this, and it should continue to do this; there is no architectural need for an additional level of isolation.