I'm just curious what 'Getty' is and what it does. The past few days I have noticed that there are always at least six instances of it in System Monitor, each using about 640 KiB memory and status says "n_tty_read".
What does this mean?
getty is what sits on the text-mode consoles and waits for someone to log in. It configures the tty device and spawns
login when typed at; historically it adapted to the communications line based on what it received, but especially on VCs this is no longer necessary.