Dating is only allowed among program students once they have obtained a certain privilege level, and with staff approval.
Another key innovation was the idea of privilege levels.
An attempt to read or write the test registers when executing at any other privilege level causes a general protection exception.
Millicode can execute instructions at a higher privilege level without involving the operating system.
The set available is determined by the "mode" and the privilege level of the current user.
In the Corps, one's privilege level has an enormous effect on a cadet's lifestyle.
The Exec contains all the code in the system that is allowed to run at the highest privilege levels.
There are no mechanisms for other code to be promoted to those privilege levels.
It is not necessary to use all four privilege levels.
This might include things like privilege level, exception handling information, arithmetic modes, and so on.