Acer Altos 1100 Series User Manual page 49

This parameter indicates the type of memory installed in the system.
This parameter indicates the serial port 1 address and IRQ setting.
This parameter indicates the serial port 2 address and IRQ setting.
This parameter indicates the parallel port address and IRQ setting.
The BIOS utility automatically detects if there is a mouse connected to the system.
If there is, this parameter displays the Installed setting. Otherwise, this is set to
None.
This parameter indicates the setting of the memory parity mode. The default
setting is ECC.