A slang term for these in the US is "IEC 320" connector, but properly IEC320 covers several sizes/ampere ratings. More correctly, the usual size in the US is 10-amp "C13" [female] and "C14" [male].
http://www.accesscomms.com.au/iec320.htm
http://www.ul.com/av/pag16.html

They are likely the closest thing to an (international) universal appliance/equipment AC-power plug there will ever be. Having switchmode supplies with wide-range input voltage [~100-240V] has probably helped their popularity too.




[This message has been edited by Bjarney (edited 11-26-2002).]