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Peripheral component interconnect modem (PCI modem) is any modem that connects to the motherboard of a computer through a peripheral component interconnect bus and is controlled by a device driver.
PCI modems are also called internal modems.
A PCI modems come in two types:
In the 1990s, PCI local bus architecture began replacing industry standard architecture (ISA). Many computers were designed to accommodate both the technologies.
The PCI modems were followed by PCI express (PCI-E) expansion cards that incorporated the modems. The PCI-E cards offer a faster hardware interface than PCI modems.