Why bus architecture affects system performance in ARM Architecture - Quick Recap

Recall & Review

beginner

What is a bus in computer architecture?

A bus is a communication system that transfers data between components inside a computer or between computers. It acts like a highway for data.

beginner

How does bus width affect system performance?

Bus width determines how many bits can be transferred at once. A wider bus can move more data in one go, improving speed.

beginner

Why does bus speed matter for system performance?

Bus speed is how fast data travels on the bus. Faster bus speed means quicker data transfer, which helps the system run faster.

intermediate

What is bus contention and how does it affect performance?

Bus contention happens when multiple components try to use the bus at the same time, causing delays and slowing down the system.

intermediate

How does bus architecture influence the overall system speed?

Bus architecture defines how data moves between parts. Efficient design with wide, fast buses and less contention leads to better system speed.

What does a wider bus allow in a computer system?

A Slower data transfer

B More data to be transferred at once

C Less power consumption

D More storage space

A wider bus can carry more bits simultaneously, increasing data transfer capacity.

Which factor does NOT directly affect bus performance?

A Number of CPU cores

B Bus width

C Bus speed

D Bus contention

Number of CPU cores affects processing power but does not directly change bus performance.

What happens during bus contention?

A Bus speed doubles

B Data moves faster

C Bus width increases automatically

D Multiple devices try to use the bus simultaneously causing delays

Bus contention causes delays because devices compete for bus access.

Why is bus speed important for system performance?

A It reduces the size of the CPU

B It increases the number of devices connected

C It controls how fast data travels on the bus

D It controls the power supply

Bus speed determines the rate of data transfer, impacting overall system speed.

Which of these improves system performance related to bus architecture?

A Efficient bus design with less contention

B Slower bus speed

C More bus contention

D Narrower bus width

Efficient bus design reduces delays and improves data flow, enhancing performance.

Explain how bus width and bus speed together affect system performance.

Think about how much data moves and how fast it moves.

Describe what bus contention is and why it slows down a system.

Imagine a traffic jam on a road.