peripheral bus

(redirected from I/O bus)

peripheral bus

Also known as an "input/output bus" or "I/O bus," it is the data pathway that connects peripheral devices to the CPU. The PCI and USB busses are commonly used in PCs. ISA, EISA, VL-bus and Micro Channel busses were used in earlier PCs. Contrast with system bus. See bus and PC data buses.
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