What process is used to accomplish high-speed data transfer between a peripheral device and
computer memory, bypassing the Central Processing Unit (CPU)?

A.
Direct memory access

B.
Interrupt processing

C.
Transfer under program control

D.
Direct access control

Explanation:
With DMA, a DMAcontroller essentially takes control of the memory busses and manages the data
transfer directly. Answer interrupt processing involves an external signal interrupting the normal
CPU program flow. This interrupt causes the CPU to halt processing and jump to another program
that services the interrupt. When the interrupt has been serviced, the CPU returns to continue
executing the original program. Program control transfer, answer c, is accomplished by the
processor executing input/output (I/O) instructions. Answer Direct access control is a distracter.