Traditional I/O buses, such as ISA, MCA our EISA buses, are directly connected to the main bus and there are forced to work at the same frequency. However, some I/O peripherals need a very low bandwidth while other need higher bandwidths. Therefore there are bottlenecks on the bus. To solve this problem, the "local bus" architecture offers to take advantage of the system bus, or front side bus (FSB), by interfacing directly with it. Lire la suite