&nbsp;My son erased the entire computer so I don't know the exact specs on this computer and a new OS needs to be installed. I believe it supports Catalina but not MountainLion&nbsp;<b>This is really for a savvy computer tech person to install new system of choice and either use a small lightweight carry or for parts. &nbsp;I am not computer savvy so I am not sure of all the computer specs. If it's not what you thought, send it back and all you are out&nbsp;is the&nbsp;shipping cost to return it.</b><div>It will not have a plug but will be charged before sending.<b>&nbsp;</b></div>