16
I/O Ports Side View
PS/2
mouse
PS/2
keyboard
USB
ports
Parallel port
LPT1
Serial port
COM 1
Serial port
COM 2
Line-in
Game Port
Microphone
Line-out
Key to I/O Ports
Component Description
PS/2 mouse PS/2 port for pointing device (upper port)
PS/2 keyboard PS/2 port for keyboard (lower port)
USB ports Two stacked Universal Serial Bus ports
LPT1 External parallel port
COM1 External serial port COM 1
COM2 External serial port COM 2
Game port External MIDI/game port
Audio ports Audio jacks for (from left to right) line-out, line-
in, microphone