Explain the meaning of each bullet point Direct Polling I/O Modes: Direct With Polling

  Explain the meaning of each bullet point

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● ● ● Direct Polling ✓ ✓ I/O Modes: Direct With Polling ✓ Check the status of the device (OUT/IN) If the device is ready, load the data (IN) If not, continue polling Easy to program Very inefficient Interrupt-driven Direct memory access (DMA) ready? CPU C I/O device status/ data ● ● ● Direct Polling ✓ ✓ I/O Modes: Direct With Polling ✓ Check the status of the device (OUT/IN) If the device is ready, load the data (IN) If not, continue polling Easy to program Very inefficient Interrupt-driven Direct memory access (DMA) ready? CPU C I/O device status/ data

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Direct Polling Polling is a protocol that notifies the CPU that the IO tool wishes its attention rig... View the full answer