Microprocessor
Which one of the following is not correct?

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

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Microprocessor
A good assembly language programmer should use general purpose registers rather than memory in maximum possible ways for data processing. This is because:

 Of limited set of instructions for data processing with memory
 Data processing with registers is easier than with memory
 Data processing with memory requires more instructions in the program than that with registers
 Data processing with registers takes fewer cycles than that with memory

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Microprocessor
How can we make any bit of a register “0”?

 AND that bit with “0” and remaining bits with “1”.
 OR that bit with “0” and remaining bits with “1”.
 OR that bit with “1” and remaining bits with “0”.
 AND that bit with “1” and remaining bits with “0”.

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Microprocessor
HLDA signal in 8085 performs the following operation:

 Hold the data in the accumulator until the microprocessor is turned OFF.
 Indicates that the CPU has received the HOLD request and that it will relinquish the bus in the next clock cycle.
 Indicates that another master is requesting the use of the address and data buses.
 Indicates that the CPU has not received the HOLD request.

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