Only if it has some form of video input. The only models I'm aware of that did are the late 2009/mid 2010 27" iMacs & it was limited to HDMI. I'm not sure if the 2011 revision had HDMI. Older iMacs or 21" models have no video input at all.
You need a HDMI port for PS3, but a Wii would need a scart or composite video connection and you would need to look into sort of a converter
Only if it has some form of video input. The only models I'm aware of that did are the late 2009/mid 2010 27" iMacs & it was limited to HDMI. I'm not sure if the 2011 revision had HDMI. Older iMacs or 21" models have no video input at all.
You need a HDMI port for PS3, but a Wii would need a scart or composite video connection and you would need to look into sort of a converter
Ah, yes, the 2010 & late 2009 27" models had DisplayPort input. The 21" did not. Early 2009 and earlier did not. HDMI->DisplayPort adapters are available. HDMI adapters are also available for the Wii.