Microprocessor
A mask programmed ROM is

 erasable electrically
 programmed by the user
 erasable and programmable
 programmed at the time of fabrication

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Microprocessor
When referring to instruction words, a mnemonic is

 a short abbreviation for the operation to be performed.
 a short abbreviation for the data word stored at the operand address.
 shorthand for machine language.
 a short abbreviation for the operand address.

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Microprocessor
Which one of the following is not correct?

 An interrupt signal is required at the start of every program
 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

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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:

 Data processing with registers takes fewer cycles than that with memory
 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

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