Unlike other consoles, XBox closely resembles a PC. It has an Intel Pentium III processor clocked at 700 MHz and an NVIDIA? graphics processor. The processors share 128 MB of system RAM. Storage includes a DVD-ROM drive and a hard disk. However, it's not a true PC, as [digital rights management]? techniques prevent an ordinary user from running code from anything but an official game disc, allowing game developers to assume a [trusted client]?.