Definition: Programmed I/O


In a disk drive with an AT interface, data transfers between the drive and host using programmed I/O (PIO). The host uses PIO to write to the Command Block Registers (CBRs) when transmitting control information, such as the location of a read command.




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Data Recovery Fact

Gigabyte(GB)

Expression used to describe storage capacity or amount of data. One gigabyte is about 1000 millions of bytes/characters (10243).

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