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Short for Intel Hub Architecture,
IHA is the replacement for the Northbridge
and Southbridge found on computer
motherboards. The IHA is found on all Intel's 800 series chipsets, and
much like the predecessor, the IHA has two parts, the GMCH and the
ICH.
The GMCH, or Graphics and AGP Memory Control Hub for short, is
similar to the Northbridge and helps control the AGP
and memory.
The ICH, or I/O Controller Hub for short, is similar to the
Southbridge and is responsible for the I/O
ports and PCI controller.
Also see: Motherboard definitions,
Northbridge, Southbridge
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