As bus architectures evolve, so do CPU and support chip architectures.
The latest processor versions provide multiple CPU cores per processor
and have enhancements that support 64 bit operating systems to take
advantage of the 64 bit architectures that are now inherent in PC
Most PC systems use a single disk to host the operating system and to
store application data, as the size and data rates are increasing rapidly.
Disk interfacing is achieved using the SATA interface (Serial ATA).