MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -In a multiple bus structure, one bus is used to fetch instructions while other is used to fetch data, required for execution. It is to overcome the bottleneck of a single bus structure. The same bus is shared by three units (Memory, Processor, and I/O units). The two independent buses link various units together.

Detailed explanation-2: -The benefits of using multiple bus architectures as compared to single bus architectures include increased system throughput and reduced system latency. Bus speed puts a significant impact on the system in both cases, but the impact is greater with multiple bus architectures.

Detailed explanation-3: -Explanation: By using single BUS structure we can minimize the amount hardware (wire) required and thereby reducing the cost.

Detailed explanation-4: -Multiple bus organization has more number of associated registers than a single bus organization. The only single operand can be read from the bus using a single bus organization, but the number rises to two for multiple bus organizations.

Detailed explanation-5: -It has the advantage that it can be optimized to produce a fast mode of operation. In the microprogrammed organization, the control information is stored in a control memory. The control memory is programmed to initiate the required sequence of microoperations.