i have an acer google chromebook with the google os. while it is fine in some aspects like general surfing, t cannot use much needed programs like skype. it has a cam that can only take quick snapshots but no delay to give you time to get in position to take the pic and no video capability. while the google os works on a could, there is also i think, a 16gb solid state drive. can another os be installed and used on the solid state drive wich then i can use skype?and where is a device switch i am reading about? is the device switch there with intention to switch back and forth from one os to anther? could an external hard drive be used with antother os? as i am not technically gifted, i'd appreciate simplified answers. thank you