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Computer Fundamentals - Engineering

Q1:

The data bus in 8080A/8085 microprocessor is a group of

A eight bidirectional lines that are used to transfer 8 bits between the microprocessor and its I/O and memory

B sixteen bidirectional lines that are used for data transfer between the microprocessor and memory

C eight unidirectional lines that are used for I/O devices

D eight lines used to transfer data among the registers

E None of the above

ANS:A - eight bidirectional lines that are used to transfer 8 bits between the microprocessor and its I/O and memory

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