Which of the following features belongs to a computer system using independent (standard) IO interface addressing ()
A.
I / O interface address space and memory address space are independent and separate. That is, the I / O interface address does not occupy the memory address space.
B.
The microprocessor manages the I / O devices using dedicated input (IN) and output (OUT) instructions for data transfer.
C.
The CPU uses special I / O read / write control signals for read / write control of I / O devices.
D.
The CPU uses storage unit operation instructions to manage the I / O devices.