What is bus? Why is the data bus bidirectional?

Subject Microprocessor and Assembly Language
NU Year Set: 1.(a) Marks: 5 Year: 2010

A bus is a subsystem that is used to connect computer components and transfer data between them. For example, an internal bus connects computer internals to the motherboard.

data bus is bi-directional bcoz the same bus is used for data transmission from the microprocessor to a memory location or input/output device and vice versa. that's y data bus is bi-directional

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