Question: The main difference(s) between a procedure call and a system call is (are) that (check all that apply) the procedure call pushes an activation frame
The main difference(s) between a procedure call and a system call is (are) that (check all that apply)
| the procedure call pushes an activation frame on the stack, while the system call does not |
| the system call invokes code written by system developers, while a procedure call invokes code written by the programmer. |
| the system call traps to the operating system, while the procedure call does not |
| the system call stores its parameters in one or more registers |
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