confusing processes

[Amish Rughoonundon <axr0284@rit.edu>]

Hi,
I was wondering where all these processes /sbin/getty ... came from since I 
did not start them
. Anybody could enlighten me. Thanks
Amish
ps g
 PID TTY      STAT   TIME COMMAND
1346 tty1     Ss+    0:00 /sbin/getty 38400 tty1
1347 tty2     Ss+    0:00 /sbin/getty 38400 tty2
1348 tty3     Ss+    0:00 /sbin/getty 38400 tty3
1349 tty4     Ss+    0:00 /sbin/getty 38400 tty4
1350 tty5     Ss+    0:00 /sbin/getty 38400 tty5
1351 tty6     Ss+    0:00 /sbin/getty 38400 tty6
16852 pts/0    Ss     0:00 -bash
16889 pts/0    T      0:00 emacs proftpd.conf
16921 pts/0    R+     0:00 ps g