Q. Program counter in a digital computer

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Q. At the beginning of a fetch cycle, the contents of the program counter are

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Q. Which components are NOT found on chip in a microprocessor but may be found on chip in a micro-controller?

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Q. For the purpose of data processing an efficient assembly language programmer makes use of the general purpose registers rather than memory. The reason is

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Q. The first machine cycle of an instruction is always

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Q. The output data lines of microprocessor and memories are usually tristated because

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Q. The correct sequence of steps in the instruction cycle of a basic computer is

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Q. The register which holds the information about the nature of results of arithmetic and logic operations is called as

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Q. Consider the following statements:
Arithmetic Logic Unit (ALU)
1.Performs arithmetic operations
2.Performs comparisons.
3.Communicates with I/O devices
4.Keeps watch on the system
Which of these statements are correct?

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Q. Ready pin of microprocessor is used

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Q. Both the ALU and control section of CPU employ which special purpose storage location?

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Q. A high on RESET OUT signifies that

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Q. In a vector interrupt

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Q. The content of the A15-A8 (higher order address lines) while executing “IN 8-bit port address” instruction are

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Q. Which one of the following interrupt is only level triggering?

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Q. Which one of the following instruction may be used to clear the accumulator content irrespective of its initial value?

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Q. ___________ signal prevent the microprocessor from reading the same data more than one.

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Q. Data transfer between the microprocessor for peripheral takes place through __________.

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Q. 8255A operates with ________ power supply.

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Q. The _______ allow data transfer between memory and peripherals.

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