Computer Hardware Terms, Glossary and Dictionary

Southbridge, one of two chipsets in the Northbridge/Southbridge architecture, is an Intel chipset that manages the basic forms of input/output (I/O) such as Universal Serial Bus (USB), serial, audio, Integrated Drive Electronics (IDE), and Industry Standard Architecture (ISA) I/O in a computer. Northbridge controls the processor, memory, Peripheral Component Interconnect (PCI) bus, Level 2 cache, and all Accelerated Graphics Port (AGP) activities.

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Southbridge