write pio methods proffred in it and picling
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Answer:
Programmed input–output (also programmed input/output, programmed I/O, PIO) is a method of data transmission, via input/output (I/O), between a central processing unit (CPU) and a peripheral device, such as a network adapter or a Parallel ATA (PATA, formerly AT Attachment (ATA)) storage device. Each data item transfer is initiated by an instruction in the program, involving the CPU for every transaction. In contrast, in direct memory access (DMA) operations, the CPU is uninvolved in the data transfer.
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Explanation:
PERSON OF INDIAN ORIGIN (PIO) CARD
A Person of Indian Origin (PIO) means a foreign citizen (except a national of. Pakistan, Afghanistan Bangladesh, China, Iran, Bhutan, Sri Lanka and Nepal) who at any time held an Indian passport.
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