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southbridge

n. (context computing electronics English) A secondary microchip connected to the CPU only through the northbridge.

Gazetteer
Southbridge, MA -- U.S. Census Designated Place in Massachusetts
Population (2000): 12878
Housing Units (2000): 5720
Land area (2000): 5.250446 sq. miles (13.598591 sq. km)
Water area (2000): 0.036864 sq. miles (0.095477 sq. km)
Total area (2000): 5.287310 sq. miles (13.694068 sq. km)
FIPS code: 63305
Located within: Massachusetts (MA), FIPS 25
Location: 42.078382 N, 72.037903 W
ZIP Codes (1990): 01550
Note: some ZIP codes may be omitted esp. for suburbs.
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Southbridge, MA
Southbridge
Wikipedia
Southbridge

Southbridge or South Bridge may refer to:

Southbridge (computing)

The southbridge is one of the two chips in the core logic chipset on a personal computer (PC) motherboard, the other being the northbridge. The southbridge typically implements the slower capabilities of the motherboard in a northbridge/southbridge chipset computer architecture. In systems with Intel chipsets, the southbridge is named I/O Controller Hub (ICH), while AMD has named its southbridge Fusion Controller Hub (FCH) since the introduction of its Fusion APUs.

The southbridge can usually be distinguished from the northbridge by not being directly connected to the CPU. Rather, the northbridge ties the southbridge to the CPU. Through the use of controller integrated channel circuitry, the northbridge can directly link signals from the I/O units to the CPU for data control and access.