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Describe programmed I/O and DMA
written 7.3 years ago by gravatar for priyad84 priyad84 • 350 modified 3.0 years ago by gravatar for prajapatijaimin prajapatijaimin • 3.3k
operating systems
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written 3.0 years ago by gravatar for prajapatijaimin prajapatijaimin • 3.3k

Solution:

What is programmed I/O?

  • Programmed I/O is one of the three techniques we use for I/O transfer.

  • In programmed I/O the processor repeatedly checks a status flag to achieve the required synchronization between the processor and an input or output device.

  • If we talk of programmed I/O, it is …

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