Microprocessor
Assuming LSB is at position 0 and MSB at position 7, which bit positions are not used (Undefined) in flag register of an 8085 microprocessor?

 1, 2, 5
 2, 3, 5
 1, 3, 4
 1, 3, 5

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Microprocessor
A microprocessor is ALU

 register unit and I/O device on a single chip.
 and memory on a single chip.
 register unit and control unit on a single chip.
 and control unit on a single chip.

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Microprocessor
Which one of the following is not correct?

 Bus is a group of wires
 An instruction is a set of bits that defines a computer operation
 Bootstrap is a technique or device for loading first instruction
 An interrupt signal is required at the start of every program

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