Output Ports
-
Monitor Port
VGA - 15 pin female (is the only port that has three rows of
holes) 
-
Parallel Port
Printer 25-pin female Port (Lpt1)DB25
Most PC's only have one Lpt1 port, a "look alike" is the SCSI port ...usually used by a scanner. If you accidentally switch printer & SCSI, the computer will not power up.