Microsoft
OEM - Original Equipment Manufacturer (NOT normally transferable)
PKC - Product Key Card. (NOT transferable)
http://office.microsoft.com/en-us/buy/product-key-card-FX101850744.aspx
FPP - Fully Packaged Product. (TRANSFERABLE)
customers cannot transfer the software to a new PC more than once every 90 days, except in
the case of hardware failure
http://www.theregister.co.uk/2013/03/06/office2013_licensing_reversal/
http://www.microsoft.com/oem/en-gb/licensing/sblicensing/pages/licensing_faq.aspx#fbid=HoKYCxRZrt4