Getty, do I need it running?

I was looking around at what services were running when trying to kill a
service and noticed the following.

237 tty1     S      0:00 /sbin/getty 38400 tty1
238 tty2     S      0:00 /sbin/getty 38400 tty2
239 tty3     S      0:00 /sbin/getty 38400 tty3
240 tty4     S      0:00 /sbin/getty 38400 tty4
241 tty5     S      0:00 /sbin/getty 38400 tty5
242 tty6     S      0:00 /sbin/getty 38400 tty6

I read in the man page this is used for dial up, I do not have dial up on
this system. Is this all Getty is used for and if so, how can I prevent it
from running in the future?

Thanks