NIMCET 2009 Computer PYQ — Why is the width of a data bus so important to the processing spe… | Mathem Solvex | Mathem Solvex
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NIMCET 2009 — Computer PYQ
NIMCET | Computer | 2009
Why is the width of a data bus so important to the processing speed of a computer ?
Choose the correct answer:
A.
The narrower it is, the greater the computer’s processing speed.
B.
The wider it is, the more data can fit into the main memory.
C.
The wider it is, the greater the computer’s processing speed.
(Correct Answer)
D.
The wider it is, the slower the computer’s processing speed.
Correct Answer:
The wider it is, the greater the computer’s processing speed.
Explanation
In computer architecture, the Data Bus is a communication system that transfers data between components inside a computer, such as between the CPU and the RAM.
Bus Width: The width of the data bus refers to the number of parallel wires or lines available to carry bits simultaneously. For example, a 32-bit data bus can move 32 bits of data in a single cycle.
Impact on Speed: As the bus width increases, the amount of data that can be transmitted per unit of time (bandwidth) also increases. This reduces the number of cycles required to fetch instructions or data from memory, thereby significantly increasing the overall processing speed of the computer.
Throughput: A wider bus allows for higher throughput, preventing the CPU from idling while waiting for data to arrive from slower components.
Explanation
In computer architecture, the Data Bus is a communication system that transfers data between components inside a computer, such as between the CPU and the RAM.
Bus Width: The width of the data bus refers to the number of parallel wires or lines available to carry bits simultaneously. For example, a 32-bit data bus can move 32 bits of data in a single cycle.
Impact on Speed: As the bus width increases, the amount of data that can be transmitted per unit of time (bandwidth) also increases. This reduces the number of cycles required to fetch instructions or data from memory, thereby significantly increasing the overall processing speed of the computer.
Throughput: A wider bus allows for higher throughput, preventing the CPU from idling while waiting for data to arrive from slower components.
