Registers are not a technique for passing parameters from an application to a system call.

The following command will display the first 10 lines of "log.txt":

The CPU can load instructions only from memory, so any programs must first be loaded into memory to run.

Either hardware or software may trigger interrupts.

Contemporary computer systems allow multiple programs to be loaded into memory and executed concurrently.

The CPU scheduler refers to the number of processes in memory.

The base and limit registers used in fixed and variable partition systems are sufficient to implement a full paging system.

The one-to-one model maps many user-level threads to one kernel thread.

Processes waiting for a certain event are placed in a ready queue.

One of the actual contributions of Unix (and later Linux) has been the view that "everything is a file."