Correct Answer - Option 4 : Utility bus
Explanation:
Bus: In computer architecture, a bus (related to the Latin “omnibus”, meaning “for all”) is a communication system that transfers data between components inside a computer, or between computers. This expression covers all related hardware components (wire, optical fiber, etc.) and software, including communication protocols.
The types of buses are:
Address Bus:
- It is a unidirectional Bus, which is responsible for only one-way communication.
Data Bus:
- It is a bi-directional bus.
- Data and Instructions pass through this bus to reach the microprocessor.
- This is responsible for the exchange of information between the main memory and microprocessor.
Control Bus:
- This is a unidirectional bus.
- This tells whether read or write, which operation should be performed that is in which direction the data should flow.
So Utility Bus is not a type of bus used in computer architecture, hence option 4 is the correct answer.
