QMCS 360 Class Notes # 4	Dr. Rick Smith Quantitative Methods and Computer Science
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Quiz

Questions about upcoming homework assignments

Loading programs

Cacheing, from Chapter 1 appendix

Interrupts vs Traps

Both cause same result

Suspend current program

Enter kernel mode

Start another program by following a vector

Interrupt is caused by hardware

Trap is caused by software

A 'controlled' way to go from user mode to kernel mode