Give the most appropriate term(s) for each of the following: (if you use any acronym, you must expand it.)

1. The hardware directed act of replacing the contents of several vital CPU registers while saving the current register values whenever an interrupt occurs.
2. Another name for software interrupts.
3. A CPU scheduling algorithm that will not have possibility of starvation.
4. A data structure that contains information about current status and characteristics of a process
5. A hardware signal that suspends execution of a program.
6. Two main goals of an operating system.