The answer is True.
Why OEM was built?
It is the version of the Windows operating system available to computer manufacturers and companies that built computer systems. A company can purchase an OEM version for any computer system it builds and plans for others. OEM versions are intended for the computers that are already building, are building for use in a company, or for any other computer that already contains another version of windows.
OEM versions are intended for server and PC manufacturers including the HP, Dell, Toshiba, and many others. These versions are intended for PC assemblers including the commercial and individuals who are building the computers from parts, for resale through a company. Companies cannot buy Windows 7 OEM from an area office supply, computer, electronics, though.
Windows 7 OEM versions are not scaled down or any missing component. The versions exactly work like end-users, versions, and include the same pre-installed applications including the internet explorer, windows media player, and other applications,
OEM version contains one license an end-user license agreement and is intended for one computer.
Like any other version, the buyer must have to activate the window within 30 days. Activation can be done through the internet or by calling the Microsoft registration service.