In computing, input/output (I/O, i/o, or informally io or IO) is the communication between an information processing system, such as a computer, and the
Programmed input–output (also programmable input/output, programmed input/output, programmed I/O, PIO) is a method of data transmission, via input/output (I/O)
computing, an input–outputmemory management unit (IOMMU) is a memory management unit (MMU) connecting a direct-memory-access–capable (DMA-capable) I/O bus to