A set of chips that provides the interfaces between an Intel CPU and the PC's subsystems. An Intel chipset provides the buses and electronics to allow the CPU, RAM and I/O devices to interact. Most Intel chipsets, which are contained on two to four chips, also include built-in EIDE support. In the past, Intel used the name "Triton" for its chipsets and also "PCIset" for PCI-based chipsets. For an understanding of Intel CPU architecture, see Intel microarchitectures
Intel's Chipset Architecture
Intel introduced its hub architecture starting with the 820 chipset, which divides control between a memory controller chip (MCH) and an I/O controller chip (ICH). This is an illustration of the 850.