Microprocessor
I)A total of about one million bytes can be directly addressed by the 8086 microprocessor II)8086 has thirteen 16-bit registers III)8086 has eight flags IV)Compared to 8086, the 80286 provides a higher degree of memory protection Which one of the statements given above are correct?

 1,2 & 4
 1,2 & 3
 1,3 &4
 2,3&4

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Microprocessor
Which one of the following is not correct?

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

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Microprocessor
HLDA signal in 8085 performs the following operation:

 Indicates that another master is requesting the use of the address and data buses.
 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 the CPU has not received the HOLD request.

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