Actuators vs Shutdown - What's the difference?

As nouns the difference between actuators and shutdown

is that actuators is while shutdown is the action of stopping operations; a closing, of a computer, business, event, etc.

(head)

(en noun)

The action of stopping operations; a closing, of a computer, business, event, etc.

You need to enter your password at startup, but it's not required at shutdown .

A statement, insult, etc. that prevents the opponent from replying further.

When he insulted me, my reply was such a shutdown he ceased his insults.

* startup