Question

What is the primary role of system bus? Why is data bus is bidirectional while address bus is unidirectional?¿

Answer 1

Explanation:

The primary role of system bus is Unidirectional because the microprocessor is addressing a specific memory location. No outside devices can not write into Microprocessor. Data bus is Bidirectional because the Microprocessor can read data from memory or write data to the memory

Answer 2

• The primary role of system bus is Unidirectional because the microprocessor is addressing a specific memory location.

• Address bus is Unidirectional because the microprocessor is addressing a specific memory location. No outside devices can not write into Microprocessor.
• Data bus is Bidirectional because the Microprocessor can read data from memory or write data to the memory. Normally Control bus is unidirectional.