Purchasing power parity (PPP) is an economic theory that states that the exchange rate between two currencies is equal to the ratio of the currencies' respective purchasing power.
MAC Address Generation. Each virtual network adapter in a virtual machine is assigned its own unique MAC address. Each network adapter manufacturer is assigned a unique three-byte prefix called an Organizationally Unique Identifier (OUI), which it can use to generate unique MAC addresses.
The WWAN FCC ID or WLAN FCC ID is  a certification number applied to wireless devices. WWAN or WLAN signifies it is a wireless device used for networking (often found in laptops and notebooks). This FCC ID certification number can be searched here.