Direct Memory Access

The DMA differs from the interrupt mode by __________

• The method of accessing the I/O devices

• The involvement of the processor for the operation

• The amount of data transfer possible

• None of the mentioned

The DMA transfers are performed by a control circuit called as __________

• Device interface

• DMA controller

• Overlooker

• Data controller

In DMA transfers, the required signals and addresses are given by the __________

The DMA controller has _______ registers.

• 1

• 2

• 3

• 4

Can a single DMA controller perform operations on two different disks simultaneously?

• True

• False