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

eight bidirectional lines that are used to transfer 8 bits between the microprocessor and its I/O and memory
sixteen bidirectional lines that are used for data transfer between the microprocessor and memory
eight lines used to transfer data among the registers
None of these
eight unidirectional lines that are used for I/O devices

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Computer Basic Information
Hardware includes ..........

None of these
the computer and all the devices connected to it that are used to input and output data.
all devices used to input data into a computer.
all devices involved in processing information including the central processing unit, memory and storage.
sets of instructions that a computer runs or executes.

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