Acer 505 series - Manual (Page 42)

1 Getting familiar with your computer 20
Rear ports
Universal Serial Bus
The Universal Serial Bus (USB) port is a high-speed serial bus which allows you
to connect and daisy-chain USB peripherals without taking up precious system
resources.
# Icon Port Connects to...
1 DC-in jack AC adapter and power outlet
2 USB port USB devices (e.g., USB mouse)
3 PS/2 port PS/2-compatible devices (e.g., PS/2
keyboard/mouse/keypad)
4 Serial port Serial devices (e.g., serial mouse)
5 Parallel port Parallel devices (e.g., parallel printer)
6 External monitor
port Display monitor (up to 1024x768
resolution, 64K-colors)