Please choose the correct multiple choice answer for #1 Parts A-D. A. The I/O fu
ID: 3821805 • Letter: P
Question
Please choose the correct multiple choice answer for #1 Parts A-D.
A. The I/O function includes a _________ to coordinate the flow of traffic between internal resources and external devices.
A. cycle B. status reporting
C. control interface D. data
B. ________ is used when the DMA module finishes the I/O operation and sends CPU a completion message.
A. Interrupt B. Polling
C. Privileged instructions D. Direction of transfer
C. Greater ability to withstand shock and damage, permits reading and writing individual bytes or small blocks of data, small size makes it useful in portable devices, are all benefits of ___________.
A. magnetic read and write mechanisms
B. platters
C. optical storage
D. solid state drive
D. The sum of the seek time and the rotational latency and transfer time equals the _________, which is the time it takes to read/write the data block.
A. disk access time B. gap time
C. locating time D. constant angular velocity
Explanation / Answer
A.
The I/O function includes a control interface to coordinate the flow of traffic between internal resources and external devices.
Option c is correct choice.
B.
Interrupt is used when the DMA module finishes the I/O operation and sends CPU a completion message.
Option a is correct choice.
C.
Greater ability to withstand shock and damage, permits reading and writing individual bytes or small blocks of data, small size makes it useful in portable devices, are all benefits of magnetic read and write mechanisms.
Option a is correct choice.
D.
The sum of the seek time and the rotational latency and transfer time equals the disk access time, It is the time it takes to read/write the data block.
Option a is correct choice.