The timer interrupt and the context switch

The timer interrupt how the kernel takes the CPU back and hands it to another process

· step 1 /

Memory of A PID 4200 · loop.c

The CPU one core · one mode bit

The timer an I/O device that interrupts the CPU

Memory of B PID 4300 · spin.c

The code two programs and the kernel

The kernel's run queue who is waiting for the CPU

The terminal