I have been using Office Pro 2003 for some years but feel that the time to upgrade is here and intend to run the free trial before committing myself. I'm thinking of 365 because I require Office on a PC, Laptop, IPad and another PC which has 2007 installed. Individual installations would be prohibitively expensive. All MS computers run Windows 7 , two 64 bit and one 32 bit
Do I have to uninstall Office 2003 and Office 2007 first?
I intend trialing on one PC initially
Can I continue keeping software and documents on the computers rather than the cloud?
Does each installation have independent passwords & identities for regular verification of validity?

Albie