Microprocessor
A microprocessor is ALU

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

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Microprocessor
DS directive in 8085

Forces the assembler to reserve one byte of memory
None of these
Forces the assembler to reserve a specified number of bytes in the memory
Forces the assembler to reserve a specified number of consecutive bytes in the memory

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Microprocessor
Which one of the following is not correct?

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

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